Female-Specific Exercise & Nutrition for Health, Performance & Longevity | Dr. Stacy Sims
By Andrew Huberman
Summary
## Key takeaways - **Avoid fasted training unless managing specific conditions**: Women have more oxidative fibers, making them metabolically flexible. Fasted training increases cortisol and sympathetic drive, potentially downregulating key hormones like LH and thyroid function, especially when combined with caffeine. [07:03], [12:50] - **Fuel appropriately before and after training**: Ingesting 15g protein pre-workout can signal the brain, blunt cortisol, and improve post-exercise oxygen consumption. Post-workout, women need 35-40g protein within an hour for recovery, with carbohydrate intake also crucial. [21:06], [26:45] - **Prioritize heavy lifting and polarized cardio**: For women over 40, focus on heavy resistance training with 2-3 reps in reserve to stimulate the central nervous system. Cardiovascular training should be polarized: either very low intensity (walking) or true high-intensity intervals (sprints <30s). [17:25], [44:16] - **Track your menstrual cycle for personalized training**: Hormone fluctuations impact training capacity. The follicular phase (pre-ovulation) is optimal for high-intensity work and PRs, while the luteal phase requires more attention to fueling and potentially moderating stress due to increased cortisol. [59:10], [01:01:09] - **Sauna use benefits women's health and performance**: Post-exercise sauna sessions (185-210°F for up to 30 min) can improve insulin sensitivity, boost heat shock proteins, and help regulate core temperature, potentially reducing hot flashes and improving blood volume for enhanced performance. [01:34:24], [01:42:19] - **Listen to your body, especially during perimenopause**: As women approach perimenopause (late 40s), hormonal shifts increase stress and injury risk. Prioritizing strength training, managing sleep, and fueling appropriately becomes critical for maintaining vitality and cognitive function. [44:16], [01:49:37]
Topics Covered
- Why Women May Not Want to Train Fasted
- Why Intermittent Fasting Can Be Detrimental for Women
- Women's Brains React Differently to Fasting and Stress
- High-Intensity Training for Brain Health & Longevity
- Exercise's Anti-Inflammatory Power for Women
Full Transcript
welcome to the huberman Lab podcast
where we discuss science and
science-based tools for everyday
[Music]
life I'm Andrew huberman and I'm a
professor of neurobiology and
Opthalmology at Stanford School of
Medicine my guest today is Dr Stacy Sims
Dr Stacy Sims is an exercise
physiologist and a nutrition scientist
and a world expert in all things
training and nutrition specifically for
women in addition to working at Stanford
and with numerous professional a letic
teams Dr Sims has authored more than 100
peer-reviewed studies on exercise
physiology she has not only evaluated
existing protocols for nutrition and
fitness that are specific to women
versus men but she has also developed
many new protocols that are now in
practice with professional sports teams
but that can also serve people who are
generally interested in Fitness and
Longevity and in doing so the general
public the tools that Dr Sims shares
with us today are applicable to Fitness
to to changing your body composition and
to overall health today we discuss how
hormones and hormone Cycles impact
nutrition and fitness needs specifically
in women of different ages we of course
discuss the menstrual cycle
perimenopause and menopause but also
female specific nutrition and training
as it relates to things independent of
hormones for instance we evaluate the
evidence that women may not want to
train fasted and the reasons for that we
talk about how training might vary
according to different phases of the
menstrual cycle and we discuss how women
can design nutrition and training
programs that are optimized for their
specific needs not just because they are
women but because they are women of a
particular stage of life and women with
particular goals as you'll soon see Dr
Sims is exquisitly skilled at explaining
the human universals of nutrition and
training that is the things that do not
differ between men and women and their
needs in terms of nutrition and training
but she is also exquisitly skilled at
highlighting the data showing that there
are specific areas of nutrition and
fitness for which women and men differ
and women have specific needs so today
you will learn what those are and you
will learn how to apply those specific
protocols such that by the end of
today's episode You Will Be armed with a
tremendous amount of new knowledge about
the biological mechanisms and the
specific dos and do Nots that can guide
you towards your female specific health
and fitness goals before you begin I'd
like to emphasize that this podcast is
separate from my teaching and research
roles at Stanford it is however part of
my desire and effort to bring zero cost
to Consumer information about science
and science related tools to the general
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30-day trial and now for my discussion
with Dr Stacy Sims Dr Stacy Sims welcome
thanks our podcast and I put out a lot
of content about Nutrition
Fitness cold exposure heat exposure
hydration topics that are very near and
dear to your heart and for which you
have a ton of expertise but for which
you have an extra degree of expertise as
it relates to females specific
yeah so I'm excited to talk to you today
because very often I will get questions
in the comment section on social media
or on
YouTube was this study done in both men
and women how does it differ for men
versus women and on and on and I rarely
if ever have answers but you have
answers I have answers for you great so
just to kick things off because this is
a question I get really
often fasting oh yeah inter mittent
fasting y we need to distinguish between
the two of
course perhaps the most common question
I get as it relates to males versus
females
is is intermittent fasting or
time-restricted feeding as it's
sometimes called an 8 Hour feeding
window a six-hour feeding window a
10-hour feeding window is that something
that perhaps differs in terms of its
impact and how well it works for men
versus women yeah that's a short answer
great yeah yeah um so I'll put some
parameters around it right so if we talk
about intermittent fasting that's where
you have like the 20-hour non-feeding
window or you're holding a fast until
noon or
after um and then we have
time-restricted eating and that's the
fancy way of saying normal eating where
you're having breakfast and then you
stop eating after or you don't have
anything after dinner right so you're
eating with your circadian rhythm during
the day if we look at intermittent
fasting where you're holding the fast up
till noon or you're having days of
really low calorie restriction we see in
active women it's very detrimental
unless you have PCOS or you have some
other
subclinical issue and the reason for
that is we as women have more oxida
fibers so we hear about all the things
about fasting to be to improve our
metabolic flexibility to improve telal
length to improve parasympathetic
activation but by the nature of women
having more oxidated fibers we are
already metabolically more flexible than
men interesting yeah didn't know that um
could you elaborate on more oxidative
fibers what that is and how how it
relates to metabolic flexibility sure
sure so oxidated fibers are are muscle
fibers that are more aerobic capacity so
those are the ones that you you can go
long and slow for a very long period of
time because it uses a lot of free fatty
acids you need a little bit of glucose
in order to activate those free fatty
acids so we look when a woman starts to
exercise she goes through blood glucose
first and then gets into free fatty acid
use she doesn't tap so much into liver
muscle glycogen which is I think another
misconception that happens so when we're
talking about fasting or fasted workouts
trying to improve that metabolic
flexibility it increases stress on the
woman and so when we're talking about
overall stress we're talking about
cortisol increase and they can't hit
intens high enough with no fuel to be
able to invoke the post exercise
responses of growth hormone and
testosterone which then drop cortisol so
from an overall stress perspective that
fast did work out and holding that fast
for a long period of time increases
cortisol but then when we look from like
a hypothalamic point of view and we're
looking at how the brain reads it we
know that there's one area of kisspeptin
neurons in the brain for men but there
are two for women so the two areas are
distinct where One controls appetite and
luteinizing hormone and the other one is
looking at estrogen and thyroid so if
you start having an exercise stress or a
daily stress of getting up and going on
with your day without fuel you perturb
those kisspeptin neurons and
downregulate them and so when you start
downregulating them we see that after
four days you have a a disregulation of
thyroid we have a change in our
luteinizing hormone pulse which is
really important to maintain endocrine
function and we'll hear this oh I've
been fasting for so many years and it
does great for me but the other side of
the question is well how much better
would you be if you were to actually pay
attention to your circadian rhythm and
fuel according to the stress at hand and
knowing that you're going to Garner less
stress that way and if we're really
tying in nutrition according to that
profile instead of following a fast we
see better brain Improvement M ments as
well we see more cognitive function we
see less thyroid
dysfunction and overall a woman does
much better when we're not in that
fasted State then when you look at
population research that's coming out
now they're showing in both men and
women who hold their Fest till noon and
then have an eating window from noon to
maybe 6: p.m. have more obesogenic
outcomes than people who break their
fast at 8 and finished their eating
window by 4:00 or 5:00 p.m. so it's
coming back to the chronobiology of we
need to eat when our body is under
stress and needs it unless we have a
specific issue like obesity inactivity
PCOS or other metabolic conditions then
we can look at using fasting as a
strategic intervention to help with
those modalities super interesting two
questions is there a protective effect
of starting the eating window and here
I'm asking for both men and women
starting the eating window at say 11:00
a.m. or noon and ending it a little bit
later so not a 6our eating window or 7h
hour eating window but extending that to
8 or 900 p.m. under those conditions do
you still see the obesogenic effect yes
because we're looking at the way
cortisol responds we know cortisol has
lots of fluctuations throughout the day
and it Peaks about half an hour after
you wake up right so if you're having
that quol Peak half an hour after you
wake up but you're not eating
then that is that higher Baseline
sympathetic drive for women for men it's
not the same so when we're looking at
that obesogenic outcome the actual
timing hasn't been tested yet to see how
can we ex expand or contract that eating
window for men but for women because of
that cortisol
Peak that right after waking up women
tend to be already sympathetically
driven so then they walk around more
tired but wired and have a really really
difficult time ACC accessing any kind of
parasympathetic responses down the way
where if you have something really small
where you're bringing blood sugar up
then it's signaling to the hypothalamus
hey yeah there's some nutrition on board
then we can start our day so again it
has to look at that circadian rhythm and
those hormone fluxes which people don't
really either understand or talk about
because all of our hormones flux through
the day and so you have to look at
where's the peak of cortisol how does
estrogen flux how does lutenizing
hormone flux progesterone all these
things that have this tight interplay
and the more we're doing the hormone
research and the more we're
understanding these perturbations and
how important it is to fuel for it to
stay out of any kind of low energy
availability
stance regular listeners of this podcast
will know this but just to remind
everybody a sympathetic state has
nothing to do with emotional sympathy
it's the sympathetic arm of the
autonomic nervous system which drives
more arousal and alertness and at higher
levels stress sometimes called the fight
ORF flight response parasympathetic
being the other arm of the autonomic
nervous system sometimes called the rest
and digest arm of the autonomic nervous
system they work sort of like a seesaw
or a push pull pick your analogy in any
case it sounds like intermittent fasting
or time-restricted feeding unless it's
very well aligned to the Circadian
rhythm is not going to be advantageous
for women that's what I'm hearing I'm
also hearing that if a woman trains
while fasted so in the non-feeding
window so wakes up maybe has some uh
hydration and trains that's going to
further exacerbate the stress response
in a way that's not going to be good
exactly
and I have to imagine that if she also
is drinking caffeine in order to do that
training because caffeine is a stimulant
of the sympathetic arm of the autonomic
nervous system that it will further
exacerbate all these issues so this is a
opener for me because I've had female
training partners for years I don't eat
until 11:00 a.m. I like to hydrate and
cinate before I train in the morning and
then I like to eat starting around
noon several of them have hopped on that
schedule with me some of them eat
breakfast first some of them don't they
do as they choose of course but now I'm
thinking that's probably the worst way
to go and it gets worse as you get older
because if we're seeing as women are
getting into par menopause which is in
their 40s and we have more fluctuation
of those hormones and an increase in
Baseline cortisol anyway then when you
look at fasted training it increases
that cortisol drive and that sympathetic
drive and because it's a point where you
really need to polarize your training to
get any kind of body composition change
not having any fuel before a
high-intensity workout puts them in
moderate intensity they just can't hit
the intensities they need to same with
resistance training like you go in and a
lot of women are now working on
sessional rpe or rating perceived
exertion where you go in and say okay we
need you to hit an eight on this squat
so you have two reps in reserve and a
sessional RP of an eight well if they're
not fueled then we are seeing trends
that they're missing around two to 5% of
that top load so they're not really
lifting in that zone that they need to
be in let's get um people sorry to
interrupt let's get people up to speed
on rpe because this is a term that's
starting to um circulate more outside
the physical um training community and
to the broader kind of you know
recreational exerciser Community which I
consider myself part of UMO I mean I
train regularly and half for years but
I'm not an I'm not an athlete I don't
get paid to train and I you know and so
forth so rep repsen Reserve perceived
effort maybe just um explain this I
think probably 95% of our listenership
has never heard these terms okay so if
we're talking about about reps in
reserve this is when you go in and if
you say eight it means you have two reps
in reserve so you finish your eight and
you should be able to complete two more
with a really good form and then you hit
failure
so eight repetitions in good form and
the person doing the exercise could in
theory if they really dug in there grit
their teeth could complete two more
repetitions in good form before hitting
failure the inab to move the weight
anymore in good form exactly okay but
they're stopping at eight so they have
two reps in reserve exactly and so we
can correspond that with your rating
perceived exertion so if we're saying we
need you to hit an eight on our scale of
1 to 10 of rating perceived exertion we
see it correlates with um that eight
with two reps in reserve so it's a way
of quantifying what you're doing in the
moment for a squat or a deadlift or some
other really heavy lift that you're
trying to accomplish as opposed to
looking at um say percentage of one
repetition maximum yeah saying you're
going to move 70% of your one repetition
maximum for six repetitions seems like
that's a great thing as well but it's a
little bit more complicated because you
need to know your one repetition maximum
doing one repetition maximums can be
dangerous if you're not skilled in that
especially with compound movements like
squats and deadlifts okay so is there an
across theboard recommendation for most
people that they should generally train
their sets in good form to failure to
leave a couple reps in reserve what do
you suggest for let's say women but this
could also pertain to men uh and then
that also depends on the age of the
woman so if we're looking at the
reproductive year so you know 20 to 40
then it doesn't matter so much you can
periodize pretty much how normal
periodization works with your mesocycles
and your micro Cycles so you're looking
at what you're doing across the few
months what are you doing in the week
are you lifting heavy power Based
training but when we start to get to per
menopause and we're losing all the flux
of estrogen and estrogen is woman's
testosterone the key driver for strength
and power we have to look at lifting
heavy so this is where we really turn
women on to we want you to do something
that is two reps in reserve three reps
in reserve because your one rep max also
changes depending on what kind of
training block you're doing so you're
finding that when you're talking about
reps in reserve then it allows people to
lift more on the day so we can get women
to get into that strength and
power-based type training rather than
going let's lift to fatigue because then
it might be 20 reps and that 20 reps
doesn't invoke a big central nervous
system response which is what we want
it's more of that hypertrophy and muscle
tearing you will gain some lean mass but
not as much strength as if you were to
invoke That central nervous system
response and that becomes really
critical as women get older because we
need to def find that external response
that's going to cause the same kind of
strength and power adaptation that
estrogen used to support
interesting lots to talk about in terms
of exercise but before we move on if the
bad situation is a woman
fasting drinking caffeine and training
intensely but as you told us not as
intensely as she would be able to
otherwise what's the solution I imagine
that solution involves ingesting some
fuel MH what is a good example of a you
know a
pre-training um meal if you will and we
could put some variation on that for
people with different you know
Tendencies towards omnivore or vegan or
whatever uh but what is the timing of
that meal relative to training that
works best or and and I'm assuming
there's some flexibility there yeah I
mean like I'm the kind of person that
gets up and is out the door within a
half an hour to go do whatever I'm going
to do so it's not like I'm going to have
a full meal I've heard of people like
you yeah mean meaning I tend to move
slowly in the morning so I wish I could
but the way my life is it doesn't work
that way um so but I'm also one of the
people that never really has an appetite
till 11 o'clock okay so we're similar in
that way yeah so how do you how do you
square that so I make a double espresso
at night and I put some almond milk and
a scoop of protein powder in there so
the almond milk is sweetened and usually
it's unsweetened but sweetened for the
carb and then the protein powder for the
protein because because if I'm going to
go do an ocean swim then I need some
carbohydrate and protein on board if I'm
going to just go to the gym then I'll
probably just have the protein powder in
the coffee yes I'm caffeinating but I'm
also getting the calories for the
hypothalamus and getting more
circulating amino acids Abby Smith Ryan
out of UNCC did some specific work
looking at carbohydrate protein before
and you know strength or cardio and
found that if you're going to do a true
strength training session you only need
around 15 grams of protein before before
you go to really help you get into the
idea that yes you have some fuel on
board and also increases your post
exercise oxygen consumption or your
Epoch so your resting metabolism stays
elevated um giving you a better chance
for Recovery post exercise as well if
you're going to do any kind of
cardiovascular type work up to an hour
then you're adding 30 grams of carp to
that so it's not a lot of food and it's
not a full meal um other people are like
I'm starving right before I go training
then yes you can have your meal giving
yourself about a half an hour before um
but it doesn't have to be major food
that we're talking about um but that's
just enough to bring blood sugar up and
and stimulate the hypothalamus to say
yeah there's some nutrition coming in
and then you have your real food
afterwards you have your breakfast
afterwards within 45 minutes as a
neuroscientist I find it so interesting
that at least some of what you're
talking about with this pre-workout meal
and perhaps most of it relates to how
ingesting those
calories impacts the brain protects
those
kisspeptin neurons we'll talk more about
kisspeptin very interesting
peptide as opposed to saying okay you
need X number of calories because you're
going to burn X number of calories I
hate that conversation right which is a
very different conversation um here what
we're talking about is the neural
aspects of being able to generate
intensity also blunt cortisol and get
the most out of training without putting
the body into kind of a an Emergency
State yeah yeah and the longer someone
withholds food after exercise and the
greater they stay in that catabolic or
breakdown State the more the brain
perceives it as being in a low energy
state so the first thing to go is lean
mass when you start telling a woman that
you know if you're going to do fasted
training and and or you're going to
delay food intake afterwards while
you're training because the first thing
that goes is lean mass and it's really
really hard for women to put on lean m M
so once you start really nailing that
and then saying look you just need 15
gram of protein to really help and be
able to conserve that lean mess it's a
small simple fix people try it and
they're like oh my gosh I feel amazing
so it's small little things when you're
working with the whole system because I
get tired especially around Christmas
time when you're reading all the
magazines it's like two cookies means
you have to walk for 30 minutes on the
treadmill it's like it doesn't it
doesn't correlate like that at all um so
that's why I was like like I hate the
calorie conversation because it's just
not applicable right and it has its own
kind of um elements of being laced with
neuroticism about calorie counting and
then that can drift easily into the
realm of Eating Disorders I did an
episode about eating disorders some
years ago and as I was researching that
episode um I learned that people with
eating disorders women and men um
especially anorexia become like calorie
calculators their eyes in their brain
just are constantly evaluating the
caloric load of food and it can be um
obviously very intrusive it's also the
most deadly of all the psychiatric
conditions so it's um that's a long way
from hopefully what we're talking about
here but but there's the opportunity for
drift whenever we talking about calorie
counting in and out we of course believe
in the laws of thermodynamics and
calories in calories out but I love what
you're describing here as getting the
brain in a mode that the brain and body
are protected so that one can invest in
that high-intensity exercise and get the
adaptations that one wants but not send
everything down this pathway of um kind
just becoming a computer of you know how
much am I exercising what did I burn
what did I earn it's it's crazy it's
crazy um as long as we're talking about
food and food intake relative to
training what is the suggested
posttraining
um window um in which one should either
avoid or make sure they get nutrition um
meaning how long does one have after
let's say a resistance training session
of about an hour seems to me that's what
most people are doing if they're
investing in resistance training maybe
plus or minus a what 20 minutes yeah um
and they're hitting those um
high-intensity sets where they have
maybe just one or two repetitions in
reserve maybe going to failure on a few
of those SES what do you recommend women
eat after they train so we know that
women who are in their reproductive
years need around 35 grams of good
protein highquality Lucine oriented
protein within 45 minutes and we see
that women who are per menopausal
onwards are 40 to 60 grams because we
become more anabolically resistant to
food and exercise as we get older um
when we look at like the recovery window
for food there are definitely sex
differences because we hear all the
conversation of there's no recovery
window it's you know it's old science
but we look at the research of when
women's metabolisms come back down to
Baseline meaning that they have constant
straight blood sugar levels versus men
women it's within UH 60 minutes and for
men it's up to 3 hours so when we're
looking at the data that says there's no
window per se for getting food in it's
based on male data so when we're looking
at women women we have this tighter
window to stop that breakdown effect and
start the
reparation um so yeah it's like when
we're talking about the protein intake
it's really important not only to get
that Lucine content up in the muscle to
start the reparation and repair but also
again to signal that yeah we're in a
building State we're not holding that
catabolic State and increasing all the
repercussions that come with it so women
should try and get 30 or as M much as 40
maybe 50 grams of protein depending on
their age m post training within an hour
of training yep men seem to have a
longer window they could wait an hour
two hours maybe even three hours yeah
before ingesting protein what about
carbohydrate we look at mixed but for
men it's more important because they go
through their liver and muscle glycogen
so much faster than women so when we
look at women we want to get around3
grams per kilo um of carbohydrate within
2 hours of finishing so we look at prot
and people like well that's a big dose
of protein how do I get it all in it's
like yeah well you can look at how we
mix all of these things you're also
getting carbohydrate in with that so
that's why I say you could have your
next meal after your training session um
yeah there's a time and a place for
protein supplementation but if you're
getting that real food in then you're
also getting you know your magnesium and
your potassium and your sodium and all
the things that people supposedly lose
and you're able to also repair a lot
better
as many of you know I've been taking ag1
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I take ag1 once and often twice every
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starting way back in 2012 there is so
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nowadays about what proper nutrition is
but here's what there seems to be a
general consensus on whether you're an
omnivore a carnivore or a vegetarian or
a vegan I think it's generally agreed
that you should get most of your food
from unprocessed or minimally processed
sources which allows you to eat enough
but not overeat get plenty of vitamins
and minerals probiotics and
micronutrients that we all need for
physical and mental health now I
personally am an omnivore and I strive
to get most of my food from unprocessed
or minimally processed sources but the
reason I still take ag1 once and often
twice every day is that it ensures I get
all of those vitamins minerals
probiotics Etc but it also has
adaptogens to help me cope with stress
it's basically a nutritional insurance
policy meant to augment not replace
quality food so by drinking a serving of
ag1 in the morning and again in the
afternoon or evening I cover all of my
foundational nutritional needs and I
like so many other people that take ag1
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huberman at some point there was a lot
of discussion about training fasted
burns more body fat uh I think now most
people accept that that's not the case
that perhaps the percentage of fat as
fuel is increased when one trains fasted
but that overall in terms of loss of
body fat it doesn't matter if you train
fasted or you train fed correct okay I
think um that can't be stated Enough by
experts like you um that doesn't mean
that if one prefers to train fasted or
with a minimum of food in their gut that
they can't do that I like to train
fasted but I what I'm hearing is that
women should probably ingest at least
some protein high quality protein and
maybe drink the protein in a protein
shake yeah um form if they don't want to
ingest solid food yeah I think the
easiest way for people to understand the
basic idea of what low energy is and how
this affects men and women is when we're
looking at um a Tipping Point for
endocrine dysfunction for men we're
seeing that Tipping Point at 15 calories
per kilogram of fat-free mass for women
it's 30 so when we're looking at
Baseline calorie needs before you really
get into that endocrine dysfunction when
you're looking at those parameters you
can see why men do better in a fasted
state or a low calorie state but for
women our intake and especially our
carbohydrate needs are so much higher
because we have so many other functions
that are reliant on that kisspeptin up
regulation or down regulation preferably
up regulation um so when we're just
talking the basic calorie needs and what
we're seeing it's that dichotomy right
there of 15 to 30 and when you start
telling people that they're like oh okay
I get it is that a biological aspect
it's like well you could trace it all
the way back where you know men went out
to get the calories in most tribes and
the women were home and it wasn't
advantageous to be pregnant under low
calorie intake that's why you have
dysfunction when the calories are too
low but you know you can also feed
forward to modern day now and you're
seeing that all this perturbance of
hormone and the way we regulate hormone
across the Circadian rhythm requires
more calories for women than it does for
men I know some men that basically don't
eat all day and then eat one meal in the
evening and they'll train in the morning
that's inconceivable to me because
within an hour or so of training I'm
hungry uh which brings to mind what we
mean when we say training uh I'm a big
believer in people everybody getting
ideally two or three resistance training
sessions in per week and two maybe three
cardiovascular training sessions per
week that would be ideal yep um one
could potentially do more probably not a
whole lot less before you run into
long-term health issues that you could
offset but I think most people can fit
those in and I'm very frankly delighted
that nowadays there's such a push for
women and men to resistance train that
wasn't the case when I was growing up
for you know I recall taking my sister
to the gym for the first time and was
like I think she was the only woman in
the gym when we were in high school yeah
except for a few female bodybuilders and
she said well I don't want to look like
that and I said well don't worry you're
not going to look like that um but now
you go to a gym and women are lifting
weights men are lifting weights it's
great it's terrific I've seen the
evolution right when I was 16 one of my
friends Brothers was a bodybuilder and
he took us to the gym of like what you
did with your sister and so both of us
were like well we want to beat those
guys so we got into weight training with
them not to be bodybuilder but it's been
like the Paramount throughout all of my
athletic career used to be I'd be the
only woman on the lifting platform and
now it's like you have to wait because
there's so many women on the lifting
platforms I love it it's great yeah it's
awesome as I mentioned before I've had
female training partners and they they
kill it yeah they um it's a lot of fun
to have a um female training partner
also because
um not only is it cool to see the
progress they can make really quickly
which surprises them often you know I
think a lot of women think that okay
it's going to require external androgens
or it's going you know and and what you
pointed out that there are some barriers
to women putting on mass quickly I think
I've noticed that strength increases can
come really quickly why is that it's a
central nervous system aspect there's a
lot of like if we look at the culture of
how a lot of us grew up and I'm saying
us like 45 plus right the women were all
the 90s supermodels don't show muscle
that kind of stuff so always been
gravitated to cardio even now if you go
to a gym and you're a new member you're
signing up for a new member and you're a
woman they'll say hey great here's all
of our spin classes and our box fit
classes they still doing that yeah and
there's a cardiovascular machines a guy
comes in like all right how much do you
want to put on here are the lifting
platforms all the you know the weight
trainings at the back starting to see a
shift with Boutique type gems but that's
still the commonality there so it's
still that little bit of taboo so when
women start strength training they
haven't been exposed to that kind of
central nervous system stress before and
the whole aspect of getting the nerve
and the acetylcholine which are are
little vesicles that you know hold the
ability for the nerve to actually
stimulate the muscle fiber all that gets
trained really quickly so the more that
you train it and the more muscle fibers
that are recruited for contraction you
see an increase in strength really
rapidly and slowly building on that for
increased muscle bulk because it takes a
long time for women to put bulk on uh
because the driver for strength training
is that Central Nervous System um so
it's great when we see higher doses more
volume we aren't seeing huge hypertrophy
we're just seeing really good increases
in strength whenever somebody male or
female is concerned about growing too
big too fast um I always remind them
that resistance training is unique among
different types of exercise in that
because of the blood flow to the muscle
during the exercise session the soc
called pump yeah you get a window a
transient window but a window
nonetheless of what the hyper could look
like if you do everything else correctly
in terms of recovery so provided that
the um the size of the muscle during the
training session is not aversive to you
yeah you're okay you're good yeah um
which is unique among you know training
it's not like when you go running you
get a sense of being much faster you
actually get the opposite effect you you
feel the burn in your lungs and and the
pain of of hitting the wall of your
limits and then hopefully if the
adaptation takes place then you can push
past that next time but with resistance
train you get a liter Lally a physical
picture and a and a sematic feeling for
what that hypertrophy could look like
yeah that's why on your physique
competitions and bodybuilding
competitions they're out the back
pumping before they go on stage so we've
been talking about training but we
haven't really spelled out what you
would suggest a
novice perhaps an intermediate um
resistance training cardiovascular
training um program would look like in
in Broad terms I realize we don't have
time here to get into all the DET you WR
this elere and refer people to those
teric resources and the show note
captions but um what would you like to
see women doing and maybe we can break
up the the age brackets because it
sounds like this is something that um is
resurfacing again and again here um
women let's say 30 and younger women 31
to let's say 40 and then let's say 41 to
60 and then maybe 61 and on in terms of
how many sessions of resistance training
per week is it whole body training how
many sessions of cardiovascular training
and what sorts of examples could could
you give yeah so if we're looking at
that 20 20 to 30 year old a lot of times
I really try to get them to focus on the
whole movement aspect first so we phase
them in same with older women phase them
in learn how to move learn complex
movements so that when you are going in
to do resistance training preferably
three to four times a week you can look
at moving well and it doesn't have to be
a long period of time if you're doing to
failure which works really well when
you're younger to increase strength and
a little bit of hypertrophy you're going
to have to spend a little bit more time
in the gym so it might be 45 to 60
minutes when we're looking at doing that
four times a week you can add in a
Sprint interval training at the end of
one of those to get that super high
intensity or you can look at putting in
at the most two hit sessions from on
separate days if you're training
specifically for something so if I work
with a lot of endurance athletes still
and they're like well how do I fit it in
it's like okay well we look at the
Quality and how that fits into your
training so if you're training for a
marathon you're training for a triathlon
or other endurance stuff you can take
that high-intensity work and put it into
your training program so ideally we look
at three to four resistance training
with really good movement when we're in
the younger set with two high
intensities when we start getting into
our 30s we start having an eye to how
are we actually doing that resistance
training instead of just going and doing
a circuit we're really focusing on let's
do some compound movements let's look at
doing some heavier work let's look at
how we are periodizing so we're having
you know six we blocks and we're
building on those blocks because we want
that base foundation so when we get to
be 40 plus we can actually go and do our
powerbase training if you're in your 40s
you've never done resistance training at
all then we take
between two weeks to four months to
really learn how to move well because
there's a higher incidence of soft
tissue injury and overall injury as we
get into our 40s because of
perturbations of estrogen and ideally
when we get there we're looking at that
around three minimum three resistance
training with compound movement
and either one Sprint interval or two
Sprint intervals and one hit in a week
and just to remind people compound
movements multi-joint movements squats
deadlifts uh chin-ups rows overhead
presses bench presses Etc as opposed to
isolation movements where only one joint
is is moving yeah yeah and for everybody
in all those age ranges that you
describe are you suggesting they train
the same muscle groups three or four
times per week or do some sort of split
where it's upper body lower body take a
day off or upper body take a day off
lower body take a day off whatever that
what might work for them yeah what works
for them if you're looking for short
amount of time in the gym because of
busy lives then you can split it if
you're looking at okay well I can
allocate an hour to an hour and a half
in the gym then you can do total body
with adequate rest um the key when
you're younger is working to failure the
key when you're older is working heavy
interesting yeah so when we're looking
at working to failure we're trying to
get more of that lean mass growth with
strength when we get older because it's
so difficult to put on lean mass we
really want to focus on the strength
component because that becomes more
important when we're talking about
longevity because if you're looking at
the strength component from a central
nervous system standpoint we see it
feeds forward into better appropri
reception attenuation of cognitive
decline and this is the other thing that
you in Neuroscience would understand the
sex differences in things like dementia
and Alzheimer's there's some really
interesting research looking at strength
training and that power-based stuff when
we're getting into our older ages
because we get more neural growth
patterns and more neural Pathways even
some interesting literature about
emphasizing some unilateral movements as
people get older not just um dual limb
movements or dual limb simultaneous
movements you always want to train both
sides of your body folks but um so if I
understand correctly younger women
should train to failure try and generate
strength and hypertrophy as women get
older they should emphasize more
strength training leave some repetitions
in reserve but train heavier yes it
makes so much sense what you're saying
yeah um because what we know about the
nervous system as we age is that there's
some atrophy or at least some weakening
of neuromuscular connections and the
upper motor neurons in the brain that
control the neuromuscular Connections in
the spinal cord out to the muscle yeah
um there's something really sticky about
this idea in terms of longevity that I
don't think anyone else has ever said no
the thing about it is men age more in a
linear
fashion whereas women we have a
definitive point in our late 40s early
50s where all of a sudden things go to
where it's that per menopausal
State and I can't tell you how many
emails and DMs I get in a day from women
who are like I'm 46 or I'm 47 I'm
putting on body fat I don't know what's
going on I can't sleep and then when we
say it's per menopause they like what is
that and so when we're looking at per
menopause it is a
huge change in the body because you're
having less and less of your sex hormone
circulating more and more an ovulatory
Cycles means no progesterone or very low
progesterone you're having a difference
in the pulse of your estrad to those
Flatline aspect effects and because
every system in the body is affected by
it this is why you see more soft tissue
injuries like two of the biggest things
that women who are in their 40s are
going to ptas about her frozen shoulder
and pler fascia those are two really
indicative issues that are happening in
Parry menopause so that whole section of
mid to mid 40s to early 50s is a
definitive aging point where I really
tried to get women to get into the heavy
lifting and get into the patterns of
polarizing their training not putting an
emphasis on zone two just really looking
at how am I polarizing how am I
affecting my central nervous system so
that when they get into that one point
in time of that perimenopause their body
is already conditioned for the stress
that's coming whereas men we see that
kind of stuff happens in their late 50s
early 60s so the soft tissue injuries
the change in body comp comes at a later
time so yes looking at how we're scoping
our strength
training definitely something to think
about in a longevity Factor but for
women it's a there's a better indication
of the timing across the ages of when
you should start implementing for men I
think you have a better bandwidth of
when you should start
implementing for women who are not on
hormone replacement therapy and we did a
previous episode about per menopause
menopause and hormone replacement
therapy but if it comes up again and
again today that would be wonderful
because these are important underd
discussed topics
absolutely for women that are not on
hormone replacement therapy who decide
to train heavier maybe do a bit more
training volume not train to failure
they're making sure to not let their
cortisol Spike too much by making sure
they have some pre-workout nutrition
some post-workout
nutrition would they be wise
to be very careful in how much
cardiovascular exercise they add to that
meaning
there seems to always be this risk of
overtraining and as you pointed out for
various reasons cultural reasons
historical reasons um around
exercise I my observation is that most
women sort of unless they know better
default to cardiovascular exercise as
opposed to resistance training so if a
woman in her 40s late 30s to let's say
50 is doing two to four sessions of
resistance training workouts per week
and they also really like cardio or they
feel they want to or should do
cardio should they be careful about how
much cardio they're doing and is there a
best form of cardio should they really
emphasize the high-intensity interval
training should they avoid zone two we
should probably also Divine for people
what zone two is if they if they don't
already know um so I am notorious for
slamming things like orange theory and
f45 because they mark it specifically to
that age group of women and it's not
appropriate because it's not true
high-intensity work when we're looking
at women who are really trying to
maximize body composition change and
Longevity and unfortunately default to
cardio because they think oh that's
going to help change my body composition
is going to help me lose body fat it
doesn't is this things like Soul cycle
as well okay I've never done any of
these yeah um but I imagine there's a
lot of spinning a lot of moving a lot of
sweating and a lot of quote unquote
calories burned emphasis yes there is
but it's it puts women squarely in
moderate intensity where they're so used
to leaving one of those classes feeling
absolutely smashed that when you tell
them actually that training doesn't work
for you because it's putting you in a
state of intensity that drives cortisol
up but it's not a strong enough stress
to invoke the post exercise growth
hormone and testosterone responses that
we want to dampen that cortisol so this
is why we have that hyperbole of women
who are in their 40s plus shouldn't do
high intensity work it's like well
actually they shouldn't do moderate
intensity they need to avoid that
polarizing absolutely that's what we
want we want true high-intensity work
which is 1 to four minutes of 80% or
more or if you're doing Sprint interval
it's full gas for 30 seconds or less and
you're doing that a couple of times a
week you're not doing it every day
because you need to have enough recovery
to hit those intensities trly
because those are the intensities that
are going to give you those post
exercise hormonal responses to drop
cortisol when we're looking at women who
are like oh well I love going out for
hours and hours on my bike and I love
you know doing my spin classes it's like
okay but we need to look at the big rock
here if you are looking for longevity
and body composition change and
cognition and all those things you have
to polarize your training and that has
to be the focus but soul food like I
come from a long background of endurance
I now love riding my gravel bike on the
weekends for long periods of time which
is not optimal for me my age that kind
of stuff for all the things that I want
to see improvements in but mentally it's
great so we talk about going out for
that long stuff zone two is at low
conversation and that's fine for mental
health and being out in nature but for
Optimal Health and well-being we don't
want to do that we want to look at
resistance training as a bedrock and
true high-intensity work to help with
body composition change metabolic
control insulin sensitivity brain health
and dropping that
cortisol I have family members who are
women who are thin because they love to
walk and they just walk a ton um and
they eat well um and enough
but they are resistant to resistance
training and if they do pick up a weight
it's usually some very light dumbbells
do a few curls a couple tricep
extensions and aren't really um leaning
into the higher intensity work yeah I
think this is pretty common and my
observation is that it's common not
because they couldn't be incentivized to
do the higher intensity work but that
learning the complex compound movement
like how to squat properly or even leg
press properly y um deadlift properly
can be a bit overwhelming especially
when one walks into a gym this is true
for men too like all this stuff all this
equipment all these bodies and these
people look like they know what they're
doing it's like if I were to go into an
advanced like kitchen or or um Symphony
and you know all these instruments I
don't know how to play yeah so what's
the best line of attack for somebody who
really wants to overcome this uh
longevity barrier because clearly
resistance training proper nutrition
work yeah and the cardiovascular
exercise piece is a little bit more
intuitive walking you do it faster
you're jogging you do it faster you're
running yeah yeah um the bike the soul
cycle class Etc it's just it's easier in
terms of the mechanics one can still get
hurt but it's just more straightforward
is there a way that in the absence of a
budget for a personal trainer that
somebody can learn how to do these
movements and as you said ease into them
over the course of even up to four
months in a way that they can be
confident that they're unlikely to get
hurt yeah and really build up their
capacity to do real work that can
benefit them yeah this is where I love
technology for one thing but if we're
staying really basic I look at some of
my family members and I've gotten them
started with just body weight stuff or
loading a backpack with cans to add a
little bit of resistance so they feel
comfortable in their own house and they
might be doing lunges or squats um just
keying them up of like where foot
placement and knee and that kind of
stuff so they're getting used to that
kind of movement um I love Kelly
starett's stuff with Mobility so show
them like here's how we do some of the
mobility to find where the sticking
points are and then you can either
direct them to some of the programs that
are out there that um like Haley happens
has some really good ones for women or
40 plus so does
um uh Brie and then Sunny Webster down
in Australia
you can send in a video of what you're
doing and he can critique you and tell
you things to do there are other
programs like that too um so there's
lots of ways of getting help if you seek
it the personal trainer is very much a
stumbling block for a lot of people and
as much as I am not a fan of Planet
Fitness I am a fan of the fact that
they've made it really easy for someone
to walk in who's interested in
resistance training and they can go to a
circuit one of the circuit things that
they have at the back and they can start
resistance training on machines which is
another level up to learning compound
movements so there's lots of ways of
breaking that barrier to entry you just
have to find the motivation factor of
what's going to incentivize the person
to give up their time walking every day
and taking time to go to the gym or
taking time to do garage based stuff
that's going to improve their lean
mass I'm a big fan of machines
especially plate loed machines but
machines just create the close to
correct or correct Arc of movement yeah
that um so for your size yeah yeah yeah
exactly and to really spend the time
adjusting the seat height adjusting the
various um pins on the machine not just
the weight in order to make sure that
one gets the best range of motion I
think this is something small but that
is significant in terms of its impact
people just pop down in a machine
especially if you're working in with
somebody and feel um especially
beginners will feel pressured to move
quickly and they won't adjust the seat
height and so it's just all wrong for
them and all it takes is a little bit of
time to you know and ask people you know
how to adjust the machines I'm also a
fan of kettle bells in in the garage or
light lighter dumbbells that you can do
like thrusters or hang cleans or
something like that to get the the
momentum and movement feeling um because
that's another good learning curve for
people um so like I said there's lots of
ways that you can Implement Things based
on someone's intuitive like or dislike
of resistance training so you've
mentioned polarized training if I
understand correctly this would be a
woman doing three or four days of
high-intensity resistance training for
45 to 60 or 45 to 75 minutes per session
and then at the opposite
extreme maybe just walking a lot or
jogging a lot so is that what you're
talking about polarized training as
opposed to um these other forms of
training where it's designed to get
people sweating like crazy breathing
hard for long periods of time but
neither putting them at the in the
landscape of inducing muscle strength
adaptations and hypertrophy adaptations
nor really taxing the cardiovascular
system enough to create you know an
increase in longevity for instance when
I talk about polarizing I look at the
high-intensity strength like that's
really hard on the central nervous
system and then we look from a
cardiovascular standpoint of doing true
high-intensity work so the walking is
more of the recovery so if you're going
to go out and do something long it has
to be very very easy if you are looking
at cardiovascular and you want that big
sweat then we are talking true Sprint
interval training so what I have a lot
of women do is a 20 minute lower body
heavy set and then they'll go on the
assault but and do as hard as they can
for 30 seconds and then recover as much
as they need to to go then do another 30
seconds as hard as they can most people
go oh I can do four or five of those
after two they're completely gassed
because it's that hard of work and
that's what I mean by polarizing you
have very very low intensity for
recovery and super super high intensity
for metabolic and cardiovascular changes
is what we're after I'd like to take a
quick break to let you know that the
huberman lab team has launched a new
podcast with host Dr Andy Galpin Andy is
an expert in exercise science and Human
Performance and has Longman a fan
favorite on the huberman Lab podcast
this new podcast is called perform with
Dr Andy Galpin and it dives into topics
such as how to build muscle and strength
how to improve your cardiovascular
health and how to optimize recovery and
sleep for performance and much more Andy
is an absolutely fantastic educator and
true expert on all things human
performance I know you'll thoroughly
enjoy his new podcast and learn a ton of
useful Knowledge from it so please check
it out and give it a subscribe wherever
you're watching or listening to podcast
now again the podcast is called perform
with Dr Andy Galpin let's talk about the
menstrual cycle yeah and how that
impacts training at the level of
Psychology and Physiology meaning Mo and
of course the two are linked they're
inextricably
linked for instance is there a
particular phase of the m cycle where a
woman should expect that motivation
Andor recovery would be more
challenging so this is the sticky point
of recent science because we see all
these research studies and met analyses
that are coming out of the sports
science literature saying that there is
no effect of the menstrual cycle on
anything when you look at that
population it is specifically you menic
women might have an a subject pool of 10
if you're lucky 12 so this is women who
have quote unquote normal menstrual
cycles humanic supposedly ovulating so
they have a definitive low hormone and
high hormone phase and this is probably
because these studies are being done on
University campuses with with college
undergraduate women yes exactly yeah
which is a typically is in a given age
range right okay and they look at
performance meaning that one point in
time and we know that psychologically
you can perform at any point in the
menstrual cycle unless you have
something like heavy menstrual belief
um when we're looking at a higher touch
and looking not only from a molecular
aspect but also pulling in mixed methods
and looking at the qualitative we need
women to track their own cycle and find
their own patterns because we know that
there are times where you feel like crap
and you can't push intensity but that
might be on day eight for one woman it
might be day 18 for another from a
molecular standpoint we know that theow
hormone phase being day one is the first
day of bleeding up through ovulation
which is Midway through your
cycle you have a greater capacity for
pulling in and accommodating stress
physical and mental stress so if we're
looking at doing heavier loads we're
looking at doing high intensity work
we're looking at
motivation then that low hormone phase
is really optimal for trying to hit a PR
trying to hit a new speed because you
can take on that stress and you're
immune system handles it your muscles
handle it your core temperature
everything handles it so for most women
in the weeks before their period they're
going to feel more robust except right
up until the point of um of menstration
or the inverse it is day one a bleeding
up through midcycle that feel great yep
the sticky Point comes not every woman
ovulates and this is a thing when we're
looking at will pop we have lifestyle
stress we have nutrition stress we know
that women for the most part have four
to five an ovulatory Cycles a year so
this is where when you're looking at
that high hormone phase we can't say
you're definitively in the high hormone
phase so this is where we need women to
track their own cycles and understand
their own patterns because in an Ideal
World we know that in the ludal phase
this is where where we have the most
change where we have a pro-inflammatory
response from the immune system we have
uh inability to access carbohydrate as
well we have a higher sympathetic drive
so there's lots of things in there that
aren't so fantastic for accommodating
stress so broadly speaking the ludal
phase is associated with more
cortisol more kind of Baseline levels of
stress would it makes sense for a woman
to try and offset some of that with a
bit more nutrition during that phase a
bit more perhaps complex carbohydrate we
know that some complex carbohydrate can
blunt some of the cortisol response
maybe just even a little bit more
attention to eating yeah absolutely I
mean core temperature goes up but the
whole goal of the ludal phase is to
build tissue so this is where we're
seeing a lot of shuttling of
carbohydrate and amino acids to go to
build that endometrial lining and that's
the whole goal so yes you need to eat
more protein you need to eat more
carbohydrate but again the sticking
point is did you ovulate or not so if
you aren't aware of if you ovulate it or
not you're tracking your own patterns
then just be acutely aware that in about
the week before your next period comes
you really need to be amping up
carbohydrate and protein um because
that's going to help you hit intensities
it's going to kind of level that playing
field especially on days where you feel
like you can really hit those
intensities you feel great but then you
go to do something and your heart rate's
higher than it should be you don't feel
that that you can hit those if you're
offsetting it with some increased
carbohydrate beforehand and you're going
to hit it so it's again it's really
dialing it back down to the individual
now because we don't have enough robust
research to make generalized ideas
because of the Nuance of have you
ovulated or not what are your ratios of
estrogen progesterone in that ludal
phase so when we bring it back down to
the general pop it's like the best thing
to do is to track your menstrual cycle
over sleep over how you're feeling find
your own pattern patterns and dial in
your training in your days according to
what your pattern
is how hard should a woman push through
the mental and maybe even physical
resistance to train less or not train
during a given phase of the cycle
getting depends on how she feels what we
can't rely on are things like heart rate
variability because we know that changes
with the autonomic nervous system change
progesterone it's a good indication that
you've ovulated because your heart rate
variability tanks but it's not a good
indication of what your body can do if
you wake up I always say it's the
10-minute rule you wake up and you feel
awful and you're like uh I really want
to do this workout but I don't know how
it's going to go give yourself 10
minutes if after 10 minutes you can't
hit those intensities or you just feel
horrible change it drop it down do
something that's more recovery do
something that's not going to be so
taxing because we do have a limited
amount of that stress Acumen of how much
stress we can handle so if you're going
to try to exert it all in a high
intensity work out what do you have left
over for the rest of the day and then
that compounds because if you're always
fighting it then you're going to
increase this Baseline sympathetic drive
because you're fighting the training
you're fighting life so give yourself
that 10-minute roll if it happens three
days in a row that's okay because it's a
very short period of time it's not going
to last forever so a lot of women have
this internal conversation of I have to
do this and it's really based on some
kind of external they think everyone's
watching them but internally you don't
have to if you give yourself permission
you end up training better recovering
better and getting better gains on the
flip side if a woman is feeling
spectacularly
good should she just really push it as
hard as she can or is there anything
about the relationship between the
hormone fluctuations of the menstrual
cycle and feeling really really great
that training hard can somehow disrupt
the cycle and this is actually kind of
the uh the old lore um probably myth I
would imagine that high intensity
resistance training is somehow
detrimental to female hormone Cycles I
don't think there's any evidence for
that but I hear that from time to time
um why do you think that myth came to be
why do you think it propagates and what
can we do to extinguish it if in fact
it's not true it's not true we see it
comes from a misstep and food intake and
we also see that it's a cultural
influence because if we think about how
sport started it started as a way for
men to demonstrate how powerful and
aggressive they are and this is the
original Olympics right there are no
women allowed and as we feed forward
into Sport and how it became okay for
women to be
involved at the high performance level
if a woman walks in and shows any
fallibility then she's immediately put
on a lower stool right no you can't you
can't play with the boys because you
have a menstrual cycle you're bleeding
you're a woman you're a delicate flower
so women would walk into that
professional sports space and be excited
if they were a menic or didn't have
periods or they trained hard enough and
their period went away because then they
were more like men and they could play
with the boys if you start bringing up
menstrual cycle in professional sport
now as of the past about four or five
years it's okay to talk about which is
you know what
2020 so that myth of high-intensity
resistance training causing issues with
the menstrual cycle one it's a cultural
Nuance for push back against women being
in that space But then the reality is
women weren't eating enough to
accommodate for that stress which then
feeds forward to low energy availability
maybe relative energy deficiency in
sport perturbations in all of our
menstrual cycle hormones so it's not the
act of the high-intensity resistance
training it's the act of not fueling
appropriately for it and then getting
the okay to not have your period because
yeah now you're you're in with you're
training hard enough you've lost it
you're more like a
man wow um very interesting history
there is it true then that if a woman
maintains either um caloric balance with
her basically eating enough to support
her energy output or even a slight
caloric Surplus that it's unlikely that
um her periods will cease even if she's
training very hard very often correct so
it basically boils down to calories in
calories out fuel for the task at hand
because some people want to have a
slight calorie deficit even in high
training and if that deficit is at night
away from training maybe 150 to 200
calories then it's going to help
perpetuate body fat loss not lean mass
loss and it's not going to interfere
with recovery it's the fueling in around
the stress
meaning they exercise stress it's really
important but women have been so
conditioned to not eat and not take up
SP space to be small you know all of
these sociocultural things that women
are afraid to admit the fact that they
want to eat and they should be eating so
this is a a a Nuance within the fitness
community that we're really trying to
change and get the mindset around you
train hard you eat well and your body
responds in kind app tight body
temperature and hormones are very
tightly linked yes they are um far too
tightly for us to uh disentangle all of
those in a single conversation here but
as you're describing the urgent need for
women to fuel enough with the proper
fuels to train hard enough to stimulate
the correct adaptations that they
need I imagine that the shift in
appetite and body temperature that
occurs across the menstrual cycle is
also going to play into this meaning
there will be phases of the menstrual
cycle where women will be just naturally
less motivated to eat enough
carbohydrate enough protein in order to
get the most out of their training what
phases of the menstrual cycle are those
um so that women can pay particular
attention to make sure that they're
fueling enough yeah um as estrogen
starts to come up right before ovulation
that estrogen surge really dampens
appetite uh it also has a an interplay
with our appetite hormones which is part
of the reason why we don't have that
great of an appetite it holds after
ovulation estrogen dips you get hungry
it comes up and people are like I have
some Cravings which are driven by
progesterone because your body needs
more calories but at the same time with
the elevation of estrogen you're not
hungry you have cravings but you're not
hungry interesting yeah so it's trying
to disconnect those it's like your
appetite is something that will come
back of course once you eat but Cravings
are more of a of that psychological
capacity of yeah I my body needs more
but I'm not quite sure what so to get
women to understand what's happening
across the board it's always coming back
to Let's fuel appropriately for the
exercise and even if you're not hungry
if you are fueling appropriate
appropriately at that point in time if
you end up with less at least you've
stopped that breakdown State the
catabolic state so we don't get those
perturbations in the hypothalamus that's
my biggest concern for women is really
taking care of that signaling from the
brain to the rest of the body and if we
have fuel on board even though we have
appetite perturbations and if you go do
a really hard workout in the heat you're
not going to be hungry either but if
you're having a cold protein drink after
that hot workout you're taking care of
that immediate need to shut down the
signals that we need to break down
things let's talk about one of the many
third rails of um discussions online
which is birth control yeah and we need
to Define exactly what type of birth
control we're talking about because
there are so many different forms yes
there are iuds there are the copper iuds
there's the ring there's the you know
let's talk about oral contraceptives
that are designed to prevent ovulation
so this is quote unquote the pill y so
we're being let's for now limit the
conversation to that so that there isn't
confusion um share with us if you will
your thoughts on these how they impact
any of the things that we're talking
about or anything else from that for
that matter can we have another history
lesson please all right um I just gave a
talk at home to some young athletes on
contraception because someone might be
on the depot and if they're on it for
more than two years they get bone
mineral density loss so then the
question of okay how does the oral
contraceptive pill come up how does that
affect things it's like well let's look
at the history of it
initially came from Stanford was funded
by um Katherine McCormick from McCormick
family and a feminist activist Margaret
Singer but because they were women they
couldn't get in the lab so they got a
guy from Stanford to develop the pill
and he's like you know what we need to
put in a placebo week so that women feel
like they're having a bleed so if we're
looking at the three active pills and
then the one sugar pill week it was by
Design to make women feel like they are
having control over their menstrual
cycle and they would still have a bleed
but it's not a true bleed it's a
withdrawal bleed so this becomes the
confusing point for people who are on an
oral contraceptive pill they're like I
get my period it's like no you don't
because the idea of the hormones that
are in an oral contraceptive pill is to
downregulate your ovarian function so
that you don't ovulate so you have a
whole different hormone profile from
someone who naturally Cycles so this
depends on
the type of oral contraceptive pill you
are using for the most part monophasic
is the one that's most prescribed so
that means the three weeks of the active
pill is the same dose of estrogen
progesterone and then you have your
sugar pill week or your withdrawal week
and then you start again when we look at
the repercussions of using oral
contraceptive pill in active women
there's a higher amount of inflammatory
responses and oxidative responses so
from a training standpoint no one's done
the study yet but I would be interested
in doing this of looking at how that
impacts adaptation you do end up with a
new Baseline of this when you start
taking the pill but we're not really
sure how that impacts adaptation we also
look at the progestin component of the
oral contraceptive pill because we have
four generations of
progesterone first generation was really
high dose and has a lot of risk factors
not really prescribed that much second
generation is the most prescribed and
this is the one that people just take
it's in your IUD it's in your OC uh has
the least amount of side effects and
then we have a third and a fourth
generation the fourth generation is
primarily used for women who have really
bad PMS or pmdd which is your um
premenstrual dysphoria Disorder so
significant mood issues because that
progestin has a direct effect on a lot
of the dopamine receptors in the brain
as well the third generation is very
androgenic so we see that in in some
preliminary research that improves speed
and Power by the second week of intake
because it's accumulated so when we're
looking directly at an oral
contraceptive pill we can't make
generalizations because you have low
dose highd dose estrogen we see that a
30 microgram dose increases hypertrophy
but not strength because estrogen
increases the satellite cell aspect ECT
um so for my power in Olympic athletes
Olympic lifting athletes that's a
detriment because they'll put on muscle
mass but no strength so we've had to
look at changing their OC or getting
them off for women who have breakthrough
bleeding that higher incidence of or
that higher intake of estrogen is is
really beneficial so we look overall at
how it impacts women from an athletic
standpoint it's so variable in the
hormone profile that we can't make
generalizations we only look at the very
high performance athletes and what's
happening up there because that can make
or break an athlete so from the general
touch point we don't know enough like
the beginning of this year 2024 there
was a study that came out looking at
changes in the amydala that happens with
oral contraceptive use it's reversible
in adults but for young girls we don't
know because their brain is developing
and unfortunately Physicians will pass
out OC's as if it's candy OC's or a
contracep contraceptives and do you
recall what the direction of the effect
was on the amydala for those that don't
recall the amydala bilateral brain
structure meaning one on each side of
your brain uh literally means almond in
Latin it's almond shaped and it's part
of a larger Network associated with
threat detection um sometimes it's
described the locus of fear in the brain
but it's involved in a lot of other
things too both positive veilance and
negative alance but nonetheless is part
of the um threat detection system
elevated levels of
arousal which is why it's often
discussed in the context of fear anxiety
Etc it increased fear in women who were
on the OC oral contraceptive pill made
them less um willing to take
chances and when they went off it
they're like why couldn't I do that
before so that's why they started
looking at the Amala and when I say
we're looking at young girls and again
we don't know what's happening is it
reversible in young girls that are put
on it or not because of the brain
structure changes that are happening um
so when we talk about an oral
contraceptive pill I want people to
understand that it has a significant
effect on the body not just reproductive
we don't know enough about all the other
effects so I have parents who say my
daughter wants to go on the oral
contraceptive pill she's having
irregular periods she's a athlete we
want to be able to control it and it's
like if there's a issue with your
menstrual cycle now it's still going to
be there when you get off it so we have
to look and see what what's going on
here if you're looking to get on it to
control your menstrual cycle why because
we know that you can have an increase in
your V2 Max and other an anerobic
capacity when you are not on it so you
have a better top end capacity when
you're not being blunted by these
hormones and then the other conversation
is oh my skin it's like well they have
really good Dermatology that can help
you with that you don't have to go on an
oral contraceptive pill but
unfortunately GPS don't understand all
of that and if a girl comes in and says
I'm having irregular Cycles heavy
menstrual bleeding I want to go on the
OC here you go so it is a huge
conversation still we had um I put it in
the same category as menopause hormone
therapy because there isn't enough
research to address all the population
needs and we see these big pendulum
switches so before it was like everyone
be on the OC and now it's like maybe not
and then it was no one be on menopause
hormone therapy everyone should be on it
but we need to land in the middle and
understand more of what's happening with
these exogenous hormones is there any
evidence that other forms of female
contraception can be let's just say
problematic for the types of things
we're discussing today like the implant
in the Depot or IUD copper IUD copper I
and the Marino or you know your
progestin laced IUD those are what a lot
of my tactical athletes will use
because it doesn't have a systemic
effect on adaptation or inflammation
mood any of those things um and it's a
fit and forget so you can put it in for
up to 3 to five years if you have a
really heavy bleeding it really
dissipates because the whole idea of an
IUD is to thin the endometrial lining
and so then you have autophagy that
takes care of the endometrial lining so
you don't necessarily have a bleed the
copper IED is different because you do
have really heavy bleeding for the first
three cycles and then it attenuates
before we got started today you
mentioned some very
interesting pioneering studies on
evaluating menstrual blood itself as a
window into some larger themes about
what's going on physiologically maybe
even psychologically um now might be a
good time seg to uh just touch into that
we can always return to it again later
but let me just ask it um more directly
what are some things that can be
measured directly from menstrual
blood that are informative for women and
it sounds like there's a new generation
of at home tests that might be
interesting and informative for them to
think about yeah well if you think about
menstrual fluid everyone thinks about it
as a discard product but it's a very
good indicator of what's Happening from
an endocrine standpoint gives a really
good indication of what's Happening from
an endometrial standpoint so if you're
looking at all the cyto and the proteins
and the tissue that comes from it it's a
huge indicator that's naturally
discharged that we're now looking at for
determining HPV do you have it or not
what about proteins for PCOS can we
really identify PCOS or endometriosis
can we talk about PCOS for a moment most
people have heard of it by now but
polycystic ovarian syndrome It's
associated with typically elevated
androgens um it's becoming more and more
common or perhaps detected more based on
better detection methods I don't know
which um the prevalence of PCOS seems to
be very very high it does and I think
it's a combination of both uh we also
see some rebound PCOS that happens when
someone gets off the oral contraceptive
pill it's not necessarily true pcus
because what's happening now your
ovaries are producing eggs m that have
been downregulated for so long so under
ultrasound it might look like PCOS but
it's not necessarily true indication the
other is more and more women are
starting to eat more and so they're
coming out of low energy availability if
you have more carbohydrate you end up
with greater folicular stimulation which
also shows up as PCOS so the true PCOS
yes there is a high incidence from a
reporting standpoint but is it that
rebound where it's not having all the
androgenetic changes that's still kind
of up in the air at the moment um but it
is a big concern for women because it is
an indication that something's going on
and they might have some fertility
issues uh we see a really high incidence
of PCOS in Olympic level athletes
because of the higher androgenic aspect
of PCOS so better recovery time a little
bit higher Baseline
testosterone um so yeah it's a
population spec specificity as well in
the 80s and 90s there was a lot of
excitement in the kind of
neurobehavioral Endocrinology Fields
largely based on animal literature but
then expanding into human literature
that certain forms of activities could
change hormone patterns and maybe even
psychology and that makes sense on the
surface of it but is there evidence that
um if somebody engages in say
high-intensity training or competitive
scenarios this has been explored a lot
in men but I'm wondering if it's also
been explored now in women
that androgens go up you know I mean
there's been these studies I don't know
how good they are of you know um people
on the stock exchange you know watching
their stress fluctuations measuring
testosterone I think most of those
studies were done in men um but other
competitive scenarios even showing for
instance that exogenous testosterone can
increase altruism in men if men are
competing for who's like donating the
most money at a Phil philanthropic event
but you put them in a different scenario
where it's far less benevolent in in
goal and then they'll uh exogenous
testosterone drives competitiveness
towards um things that are more
traditionally thought of as male male
competition uh in other words it's all
context dependent um is there anything
that kind of Springs to mind of
interesting studies as it relates to
androgens or uh estrogens in women
athletes and as it relates to
exercise they haven't done any specific
studies like that in women we do see
that under stress the cortisol increases
and if you have an adequate uh response
to it and your body can overcome it then
yes you get a boost in testosterone for
women um we see this in a lot of the
night Mission shift changes in tactical
athletes there is also uh I guess a
lessening of circulating estrogen so the
pulse changes when we start getting to
the end of a really strong training
block because we're starting to have a
little bit of a down regulation of our
leutinizing hormone pulse and estrogen
um but it shouldn't be severe enough to
cause menstrual cycle dysfunction what
we want people to do is look at the
ratio of their estrogen progesterone and
keeping track of luteinizing hormone if
they are at that point where they are
going to have a really big training
block so we look at pre-season during
season end of season and people who
might be at a higher risk factor for
becoming a menic then we keep track that
way um because it is the stress
component that can downregulate not
actually causing a permanent change as
we talk about menstration we should
probably talk about iron stores and um
Iron yeah um do women need to supplement
iron given that they lose iron during
menstration it's interesting because we
have a change in heepen or heidin
depending on which part of the world you
come from uh because it is increased
under times of inflammation and
decreased under times of iron loss so we
see a a significant change across the
menstrual cycle so I tell women if you
are concerned with low fertin then we
want you to take an iron supplement
every other day starting in the first
day of your bleed for 10 days because
that's going to really allow your body
to absorb it and stay on top of it um
after that every other day yeah but
you're not going to be absorbing as much
of it because hepsin starts to come up
after ovulation again you have a
pro-inflammatory response so you have
greater inflammation do women blanket
need a supplement no because we see
fatigue isn't necessarily just iron
related there's so many other reasons
why women are fatigued the one problem
is the Baseline levels for like ferien
for active women if you go in and you
have a fertin level of 20 to 25 they're
going to say it's normal
but we'd rather see you up around 50 so
if you are in that low end of normal
then supplementing will help you get up
into that 50 and see if it makes a
difference if a woman is going to get a
blood test to evaluate testosterone
estrogen lipids metabolic factors Etc
and she can only afford to do that at
one point during her cycle and compare
at various times maybe every six months
or once a year even at that spefic
specific time of her cycle is there a
Best time in cycle to do that blood
test uh if I'm limited to say that then
I would say 5 to seven days before her
next period starts so mid ludal because
then you get a good indication of
estrogen progesterone Peak testosterone
doesn't fluctuate as much as those two
so you're going to get a good idea what
Baseline testosterone is and we know
that there's a greater inflammatory
response so anything that's outside of
the norm of that upper elevation of
inflammation you're going to be able to
to pick out um so yeah I would say if
you could only do it at one point in
time that would be the time to do it and
if she can add a second blood test at a
different phase of the menstrual cycle
where would you place that second test
day two of the menstrual cycle second
day of bleeding to get a really good
indication of what your true estrogen
level is at Baseline and if she measures
her hormones at those two times within
the cycle do you think that's sufficient
to um get 75% plus of the relevant data
yeah definitely
terrific caffeine yes in the old days
yeah meaning when I was a kid and not
long ago 10 years three weeks ago um we
would hear these crazy statements about
caffeine it pulls calcium out of the
bones it's you know you'd hear this
stuff I did a whole episode on caffeine
I'm a big fan of caffeine but I do warn
people that if they suffer from anxiety
or they're going through a particularly
stressful life event it can raise the
activity of the sympathetic arm of the
autonomic nervous system you'll feel
more nervous you're more prone to panic
yeah when you're drinking caffeine but
um many people love caffeine I think 90%
of the adult population of the world
ingests some form of caffeine every
single day I'm in that 90% yeah likewise
making it the most consumed drug
worldwide is caffeine safe for women I
suspect based on what you just said that
the answer will be yes but are there um
case conditions where women should be
cautious about their intake of caffeine
independent of this anxiety thing I mean
people probably shouldn't uh drink more
caffeine than they can uh tolerate
psychologically no one male female young
or old yeah yeah it's more of a genetic
Factor than it is a sex Factor uh so I
mean both men and women will be fast
metabolizers slow metabolizers or not
have an effect that becomes the bigger
Rock of them what we do find is in that
per menopausal State women will become
more sensitive to the blood sugar
fluctuations that happen with caffeine
so they're used to having coffee in the
morning and with something then halfway
through their workout they become a
little bit
hypoglycemic because there's changes in
um insulin sensitivity insulin responses
so there's changes also in blood sugar
control
and caffeine can exacerbate that so if
you are someone who's like oh I always
have a double espresso before I go
workout and then halfway through I'm
really hypoglycemic I'm really dizzy and
lightheaded I don't know what to do feel
sick or nauseous yeah yeah eat some food
eat some food with it what about sipping
caffeine through the workout um you know
taking that coffee in and just having a
SI between sets can that offset some of
that uh I don't think so okay I hear a
lot that people who drink caffeine
before a workout you know Midway through
they're like I don't feel good yeah yeah
cuz they don't eat that for me that just
stimulates the desire for more caffeine
but um or even how dare I say a half
piece of nicotine gum which I
experimented with but I was told and
this is why I'm not going to continue to
do it not only is it very habit forming
it actually is such a Vaso constrictor
that uh I was told by a dermatologist
that it's terrible for skin even if
you're not getting your nicotine by
smoking vaping dipping or snuffing so
this this big Trend now toward ingesting
nicotine as a stimulant and cognitive
enhancer and performance enhancer I
think people should at least be aware of
the negative effects on skin never would
have known because I'm not a nicotine
person I'll tell you that half piece of
nicotine gum is um the first time you do
it it's a it's an unbelievable
experience it's the it's like your first
real cup of coffee oh really wakes you
up yeah and dials you in I I recommend
nobody do it because it's it feels that
Pleasant if you like caffeine I like
Shandra for that reason Shandra yeah
what's Shandra it's an adaptogen I me I
should know what this is you you should
know what this is I should know well I'm
here to learn okay um Shandra Shandra uh
yeah so it is an adaptogenic plant so
you know like jining siberian jining
maah asaga all those buzzword out there
Shandra is another really well-studied
adaptogen and I have friends who say
it's like Aderall where you take it and
it's immediate fun focus and function
because its main goal is to regulate
dopamine serotonin and cortisol so it
gives you gets women and men out of that
brain fog gives them incredible Focus do
you use it yep are you on it now I put
it in my morning coffee okay uh you just
sent people down the uh the rabbit hole
of the internet of the internet all
right yeah yeah you heard it here first
from Dr Stacy Sims I'm going to give it
a try because the nicotine thing is an
interesting one and there are some
cognitive enhancing effects of nicotine
that perhaps in um people 65 and older
might actually be beneficial for
offsetting some forms of neurod
degeneration but that needs to still be
explored and researched don't cut that
and clip it and put it out there like so
that's happened already um very
interesting all right caffeine we both
agree is great Shandra you got to try it
check it out let me know all right we'll
do
cold yeah for reasons I still don't
understand people have Associated me or
this podcast with deliberate cold
exposure I like deliberate cold exposure
in the form of a cold shower or a cold
plunge or an ice bath mostly for the
effects that occur
afterward meaning more alertness a kind
of semi- euphoric Buzz that goes on a
long long time no I don't think it
increases metabolism significantly
enough to have a meaningful difference
but the long long lasting increases in
the so-called catac colines dopamine or
epinephrine and epinephrine to me are
pretty impressive and I just like the
way it makes me feel so that's the main
reason I believe why people do
deliberate cold exposure and every time
I do a post about deliberate cold
exposure I get asked understandably so
how does it affect women differently
than men and then I usually get
questions about rod syndrome oh yeah
yeah so is there a difference in terms
of how Del cold exposure impacts women I
have to imagine the answer is yes given
what you said earlier about Vaso
constriction versus Vaso dilation but
deliberate cold exposure like it hate it
what do you think do you recommend it
for women I recommend it for Open Water
swimmers who might experience that vagal
response when they first dive into the
cold I prefer heat for women everyone's
a responder to the heat you get better
adaptations so sauna yep sauna hot tub
yep preferably a true finish sauna
infrared doesn't it warms the skin but
not the core we want thank you for
saying that I'm not a big fan of
infrared sauna cuz it doesn't get hot
enough no yeah you can bring an infrared
light into a traditional sauna if it can
tolerate the heat yeah but finished
sauna would be what something between
185 degrees Fahrenheit and maybe 210 if
you're really heat
adapted yeah I'm still working on Metric
let me do the conversion oh sorry yeah
you're living down in New Zealand now
yeah so 60 to 80 degrees C I need to
look every time I've tried to do math on
the fly on this podcast in my head it's
like okay * 9 different processing mode
yeah but people can look it up yeah okay
look it up um so the thing with cold
water exposure is the whole conversation
about ice cold ice baths and how cold it
is it's too cold for women because when
we're looking at that severe immediate
jump into that icy cold it causes such
severe constriction and shutdown so
women do really well and get that whole
dopamine response and everything if the
water is around 16° C which is 55 to 56
degrees Fahrenheit which is chilly it's
chilly it's not warm no it's go dive in
San Francisco Bay right and that is
enough to offset that severe
constriction survival but it is cold
enough to invoke all the changes that we
want with cold water
exposure so it's a temperature Nuance
that's that sex difference and like I
said when I have Open Water swimmers who
are going to do a long swim or they're
going to do a triathlon and the water is
colder I have them do cold water
exposure especially face exposure into
the cold water um to get them habituated
to that initial severe constriction and
sympathetic activity that we don't want
to happen before a
rice with heat being the true like true
heat that we're talking about with sauna
we see a lot of metabolic changes for
women so we're having better insulin and
glucose control we're seeing uh a better
um expression of our heat shock proteins
and the uncoupling and and the
rebuilding of those proteins that are
cardiovascular responses and then for
women as we get older and have the
offshoot of hot flashes night sweats
that kind of stuff if you're doing heat
exposure you're sending a stronger
stimulus to the
hypothalamus and you're also getting a
better serotonin production from the gut
because we have 95% of our serotonin
produced from the gut which lends to
better temperature control and shuts
down hot flashes I think some people
might be confused by the idea of using
sauna in order to reduce the hot flashes
um so I'll just remind people that your
brain has a set of neurons in the medial
preoptic area that's sort of a
thermostat if you will controlling core
body temperature and if you heat the
surface of your body your medial
preoptic neurons say oh let's cool down
the core of the body now if you stay in
that heat too long you'll cook your your
body core body temperature will go up
but conversely if the surface of your
body is made cold the internal milu of
your body will heat up because those
medial preoptic neurons will say oh
you know this this is like putting an
ice pack on the uh thermostat which is
what um graduate students and post talks
used to do in the labs side working
because it was a battle over the the
heater right some people were in hot
some people were in cold so there was
always this this business in any event
um so it's not that you disapprove of
the of using deliberate cold exposure
you just recommend that women do
deliberate cold exposure with
temperatures that are maybe in the um
low 50° Fahrenheit um Range as opposed
to the really H frankly just painfully
cold for anybody um you know 38 to you
know 50 degree temperatures right we did
a pilot study looking because Wim Hoff
has been down to New Zealand quite a bit
and so you know his breathing and ice
bath stuff has been making the rounds
and working in the high performance
people wanted to do that but we have few
athletes that have really severe
endometriosis it's like well we could
look at using cold exposure to help
control that and what we found over the
course of this study was that if we were
to do deliberate cold
exposure around ovulation and then hold
it for 10 days over the course of three
menstrual cycles it attenuated the
endometriosis because endometriosis is
an inflammatory disease right so if
we're looking at inflammation process
and growing the tissue if we can dampen
that inflammation and create a response
that learns that inflammation and
dampens it then it helps with
endometriosis interesting that's another
Avenue that we really want to take when
we're looking at Cold deliberate cold
exposure wow
fascinating as a cautionary note if
anyone is going to explore Wim Hoff type
methods um please please please do not
combine cyclic
hyperventilation um or hyperventilation
of any kind with breath holds and water
exposure not even in the depth of a
puddle um there have been drownings
associated with people doing cyclic
hyperventilation in various contexts not
just related to Hof breathing but um
basically people who are not skilled um
and even some who are skilled combining
cyclic hyperventilation breath holds and
water in any form cold or warm water
idea just don't if you're going to do
any kind of cyclic hyperventilation
breathing my labs actually published on
this in a clinical trial do it on dry
land or don't do it at all and if you're
going to do deliberate cold exposure um
limit your breathing to slow deep
breaths make sure that you're um well
supervised and um just stay alive please
yeah so we didn't incorporate any of the
Wim Hof breathing we just Incorporated
the deliberate water cold water
exposures cold and temperature generally
is such a potent stimulus and it's
exciting that people are starting to
explore this especially the in my
opinion the the sauna work uh one thing
I suppose that we should um discuss very
briefly before we move on since we've
been talking about resistance
training we've been talking about
deliberate cold exposure there is
evidence that doing deliberate cold
exposure not so much in the form of a
cold shower but in the form of a um
submersion up to the neck post strength
or resistance training say in the four
but probably the eight hours after
resistance training because of the
attenuation of the inflammatory response
which sounds like a great thing it
actually can inhibit some of the
strength and hypertrophy gains that one
would otherwise experience so if you're
going to do deliberate cold exposure
best to not do it in the eight hours or
even on the same day after resistance
training geared towards developing
strength and hypertrophy increases no
problem to do it first in fact maybe
even some performance-enhancing effects
of doing it first there's some athletes
that stand for doing that but just want
to throw that out there is there
anything else you want to add to that um
which is different from heat exposure
because heat exposure you want to do
afterwards the phas of dilation yeah
because it extends that training
stimulus
and also the passive
dehydration from training will stimulate
greater blood volume improvements oh
interesting so after a good weight
training session if one has the luxury
of doing it get into the sauna for up to
30 minutes make sure you're hydrating
you want slow rehydration because part
of it is that dehydration and the
decrease of oxygen at the level of the
kidney to stimulate more EPO so with
more red cell production you have
natural increase in plasma volume so
it's a blood volume expander o so now
we're getting into Real Performance
enhancement is this true for men and for
women yep yeah uh let's walk through
this protocol I like I like this this is
uh this has not been discussed on this
podcast so um somebody does their
resistance training M finishes up drinks
eight or 16 ounces of water with a
little salt in it maybe and then hops in
the sauna yep for how long up to 30
minutes okay no longer no longer no
longer yeah they'll probably be a little
bit thirsty in there you're looking for
a little lowlevel dehydration is that
right yep okay um the ranges that I've
seen published in the finished studies
are as I recall and I'll double check
these numbers 186 degrees Fahrenheit up
to about 210
Fahrenheit um and the higher end only
being for those that are heat adapted
yeah one can cover their head with a
towel and actually feel more comfortable
because the brain is insulated the
surprises people they think putting a
you know something on their head would
make it excessively warm but you
actually protecting your brain from some
of the Heat and people will put a towel
over so that they when they breathe it
doesn't burn the inside of their nose
and their mouth either um I'm always
like if you're going to be in and it's
that hot just move down a level so on
the floor y y um and this stimulates the
production of more red blood cells MH
okay which then translates to what in
terms of athletic performance you have
an increase in your
cardiovascular effort and because you
have greater amount of blood volumes you
you have greater amount of pretty much
blood circulating so you have more
available for um muscle metabolism heat
loss um so it's akin to going to
altitude so people will go to altitude
to get that blood volume boost but not
everyone responds to altitude you have
responders non-responders over
responders okay this is why when I go to
Colorado I'm gasping for air while I do
a walk but then I come back to C Level
and I feel better my endurance is better
but some people might not experience
that effect true this is I was telling
the guys before we started that I've
been in ARA at home in preparation for
going to Park City because I live at a
beach town and going to Park City I am a
significant responder to altitude and I
won't be able to have coherent meetings
at altitude if I am not adapted so okay
yeah so this explains why when I've gone
to meetings in Colorado at altitude some
people can have a drink that first night
and they're perfectly fine even though
they normally live at sea level and I'm
trying to trying to see the stairs
correctly even though I don't drink y
that would be it very interesting so you
can use post resistance training sauna
exposure to
improve performance yeah you can use it
um post cardio as well so anything that
is giving you that passive dehydration
from training because you're not because
you will become passively dehydrated
when you're training right you can't
keep in as much fluid so I'm saying
passive as in you're not able to stop
that dehydration and then you go into to
the sauna and you are extending that
training stimulus because your heart
rate is elevated you're putting your
body under stress from
dehydration and the body responds in
kind of we need more blood volume so
let's let's jump start that I love it
logically watertight and um I'm going to
give it a try yeah what other training T
tricks tips do you have up your sleeve
Dr Sims what you want to talk about um
do you have any favorites besides that I
I Delight in these and I know other
people will as well um do any come to
mind I mean you've T us about
Shandra um about posttraining sauna
exposure to improve performance by
increasing red blood cell count yeah
there is there anything else that
Springs to mind no no no
pressure uh I'm a fan of what I call the
track stack that we used to use for
track athletes but then for really
significant high intensity work so track
stack is kind of the idea from the old
bodybuilding set where you're taking 200
milligrams of
caffeine uh lowd dose baby aspirin MH
but then I add beta alanine used to be a
fedrin I know so I'm I'm old enough to
remember when they would sell it as the
triple stack with a fedrin but some
people dropped dead and they took it off
the market y hey it came back on the
market in New Zealand last week did it
really yeah it gets you going yes it
does it's um it's Speedy y um it's
dangerous yeah but the track stack which
has beta alanine and not
ephedrine is really good at encouraging
an extra top end effect because you're
having the caffeine you're having a
little bit of the blun blood thin from
the aspirin and then the vasodilatory
properties and the carnosine aspect for
muscle contraction from the beta alanine
and so like training for gravel races in
the top end Sprint you do a couple of
Sprint sessions with that and it's
increasing your training stress during
the training so your adaptation is to
that higher stress should anything be
done in terms of recovery to make sure
that you offset that additional stress
that's achieved with this track stack
yeah um just making sure that you're not
stacking two days in a row of high
intensity work like really making sure
that you're recovering well because it
is a significant stress on the body what
about sleep we hear so much these days
about the importance of sleep for mental
health physical health performance I
think this is a great thing a great
Trend are there female specific
requirements for sleep that vary across
the menstrual cycle Andor by age or just
generally you know do men and women need
to think about the need for Sleep
differently yeah um part of it is the
obvious like when you're talking about
sleep temperature right women and men
have variations in their sleep
temperature and what's optimal so
looking at that like you need to create
an environment for you that is cool
comfortable which is probably going to
be different from your partner who might
be sharing your bed so that becomes a
sticky point we talk about the menstrual
cycle there are definitive changes in
sleep architecture we're seeing that in
around the mid ludal to the premenstrual
so you know that about 10 days before
your period starts significant change in
your slow wave sleep there's less of it
latency is increased so you have a
longer time to get to sleep and you have
more light sleep so overall you know
less of that deep recovery sleep and
this is where women tend to have more of
their mood issues too because of
estrogen's play with serotonin in the
brain so we really need to nail down our
sleep hygiene in that time period um so
looking at things like eleanine and
appenine and looking at your room
temperature and the screens and all the
things that you've talked about for the
most part about sleep and sleep hygiene
super important and then of course as
you get older in both men and women
becomes more difficult to sleep but we
see significant issue with insomnia in
women who have really bad hot fleshes
and significant uh menopausal symptoms
and again this has to do with lots of
the perturbations from temperatures of
night sweats increased sympathetic load
um not being able to get into a
parasympathetic state so this is where
working with a specific sleep specialist
might come into play we can also look at
using some adaptogens the Rola stacked
with
theanine um and looking at the cold
temperature getting people to use the
non-sleep deep rest or Yoga Nidra or
some other kind of meditative property
that they can then access when they're
in bed so there's a lot of different
things that we have to be aware of um
and again in that par menopausal State
we see that significant change in sleep
and sleep architecture and quality of
the sleep but men don't have the same
thing so women have to be a little bit
more aligned with what's happening from
a hormonal profile standpoint because it
does definitively affect serotonin
melatonin and sleep architecture because
of the interplay that estrogen has on
the brain and The receptors makes very
good sense we'll put a link in the show
not captions to some zeroc cost um
non-sleep deep breast yogan nras we've
put out a couple with my voice if you
prefer another voice I a big fan of the
ones by Kelly boy who's contributed to
um The Waking Up app it also has
terrific um non-sleep deep breast yoga
nras out there and there are S as well
um you mentioned a few supplements
theanine um appenine which is chamomile
extract um maybe let's just have a
general conversation about supplements
what's your thought on supplements um
how do you place them into the landscape
of nutrition they are after all
supplements not Replacements but um the
word supplements I I believe is a little
bit misleading um because there are
food-based supplements you know like a
protein powder um there are supplements
designed to achieve a specific Al come
and then there are supplements that are
kind of a um designed to be a more you
know support for a bunch of things you
know kind of insurance policy um what
are some of your favorite supplements in
any of those categories specifically for
women and perhaps even specifically
During certain phases of the menstrual
cycle Andor per menopause menopause I
just threw about nine questions at you
okay the number one is creatine creatine
for women doesn't matter what age it's
really important we're seeing a lot for
brain mood um and actually gut health so
five grams of monohydrate per day
sort of to five three to five yep um
preferably of course Crea pure because
the way it's produced so if you're
looking at Crea pure it's the German
company that produces it uses a
water-based wash to produce the creatine
interesting whereas others use an
acid-based wash and we see a lot of side
effects with the acid base wash like
gastric distress yeah so people are like
I'm really bloated and I have nausea and
stuff from taking creatine I'm like is
it Crea pure actually no it's like
switch to creapure and so they switch
and they're like oh my gosh I feel so
much better noted yeah um and then
vitamin
D3 really important especially um when
we're looking at all the information
that's coming out from cardiovascular
muscle brain everything that goes with
vitamin D also with iron so vitamin D is
really important for absorbing and
maintaining iron
stores uh so those are the two big ones
and then sorry I just wanted to stop you
for a moment um as it relates to
creatine I hear two general lines of
concern one I hear more often from women
my understanding is that because
creatine brings water into the muscle as
well as supporting the phosphor creatine
system of the
brain the water into the muscle
component means yes people who take
creatine 3 to 5 grams per day will gain
a few pounds of body weight that's solid
body weight in the form of water within
the muscle so solid in air quotes it's
water but it's within the muscle
um so they should know that um it's not
a given though interesting it's not a
given there are some women on the lower
dose of three that don't experience the
water gain okay and this is not bloat
like water subcutaneous water this is
water within the muscles correct so it
will be uh stored within lean tissue um
and then I do hear concerns about
creatine uh causing hair loss I my
understanding is there is zero evidence
for that no evidence there is a smidgen
of evidence that it might increase
dihydrotestosterone levels but it's like
one study marginal increase and then
people linked dihydrotestosterone to
hair loss and so then the the conclusion
people drew was that somehow creatine
increases hair loss but you're saying
zero evidence no evidence we see that
women who start taking it midlife are
complaining about it but it's actually a
progestin driven thing we see
progesterone and fluctuation
progesterone can exacerbate any hair
loss so if women are experiencing that
and they're saying oh it's creatine I've
read all this stuff on Creatine no it's
not okay so we've got creatine D3 um a
th000 IUS per day 5,000 IUS I guess it
depends a little bit yeah uh being very
close to Antarctica in the southern
hemisphere in the
winter uh very low sunlight exposure
um looking around the 5,000 same with
upper Northern Hemisphere UK that kind
of stuff closer you get to the Equator
the less you need the one concern is
like a day here where it's foggy and
it's supposed to be sunny and people are
like great I don't you know don't have
to worry about going out in sun exposure
but then the next day it's bright and
sunny and they're like ooh sunscreen so
they put sunscreen on and not getting
the right sun exposure so then again it
is a lifestyle thing so basic is two to
5,000 great Okay so we've got creatine
vitamin D3 what are some of the other
supplements that you um that you take or
that you I don't know if we say suggest
but that you um perhaps suggest women
consider yeah so protein powder a really
good high quality uh because the amount
of protein that women should be getting
is often difficult to eat um so again
supplementing not using as the main
stay uh that's one to consider and then
again I'm about adap
so looking at the different adaptogens
ashanda is a good one holy basil or
Tulsi is another one Shandra and then
getting into some of your medicinal
mushrooms Lions man Rishi those are the
two big ones that I look to and often
have women
use if these
adaptogens blunt cortisol because
certain ones do like ashwaganda which by
the way I do think people should cycle
if they're going to take it high doses
right cuz there are some ISS issues with
liver and thyroid and thyroid problems
if people take ashwaganda high doses for
too long so that's um important to note
but assuming that the adaptogens are
reducing cortisol levels um in addition
to doing other things is there a
particular time of day or night that
people should consider taking them
should they avoid taking it early in the
day my understanding was that you you
want a bit of that cortisol uh bump
early in the day but you certainly want
cortisol lower later in the day yep and
I think the problem is people think that
they don't want any cortisol and they
think that would be bad that would be
bad they don't understand that the body
has fluctuations of cortisol throughout
the day and that's normal if we're
looking at having issues with sleeping
and that anxiety provoked from that
sympathetic drive and elevation to
cortisol let it peak in the morning
after you're waking up and look late
afternoon like 4:00 when it starts to
dip to take your adaptogens then because
then it feeds forward to being able to
relax more which feeds forward to better
sleep for something like Shandra where
you're looking for that brain Focus you
can have it in the morning it doesn't
necessarily have as big an impact on
cortisol that you see with something
like Tulsi or ashanda because Shish is
more stimulatory the other two are more
calming um I put some in my morning
coffee and then in the afternoon when I
need to pick me up instead of more
caffeine I'll us Shandra because it
gives you that boost without the effects
of caffeine and it doesn't interfere
with sleep so there's a time and a place
to take them and yes some need to be
cycled on some need to be cycled off but
I tell women what are your main symptoms
what are the things you're looking to
control and we can look and see what
kind of adaptogens we can use and how we
place them what's the story with
pregnancy and training yeah you um is
there an official word on this you know
uh assuming a woman knows that she
pregnant from the very beginning of
missing a period where she's in a
position to make decisions about
training or not training training at a
given intensity or or not um what are
your
recommendations the human body is really
interesting and when you get pregnant
your body tells you what you can do so
we see that you have a reduction in your
Anor robic capacity on purpose your
body's trying to be protective you do
have an expansion of your blood volume
so endurance is really good but you
can't do
high-intensity um when we're looking at
the general guidelines that are out
there they've gotten rid of the heart
rate rule they are now telling women to
be as active as they can be without
creating injury and without trying to
make gains so that means if you're in
the weight room you're not looking to
improve you're looking to maintain if
you're doing cardiovascular work and you
have a specific class that you love to
go to yeah but don't beat yourself up
that you can't hit that high in
intensity you're going for the social
aspect you're not trying to gain Fitness
you're trying to maintain I think the
very worst possible scenario is someone
who superactive and stops doing
everything because they're afraid
because then they get deconditioned and
then they end up in a worse State than
someone who was sedentary who's now
encouraged to walk during exercise um it
hasn't been well researched because you
can't get ethics to study pregnant women
very well so we go on a lot on um case
studies and cas study notes and the
bottom line of it all is you stay active
and you can do resistance training you
can do all the cardiovascular work and
your body will tell you what you can and
can't do I've been asked whether or not
pregnant women can do deliberate cold
exposure probably no fewer
than 2500 times on social media and I
never have an answer and but I always
default to the cautious answer which is
uh please don't until you talk to
somebody who actually has an answer yeah
just because it sounds like a very
precarious situation but in all honesty
I don't know I'm just biing time there
and just saying please go ask somebody
who can give you a definitive answer yes
so we see women who have a high risk for
miscarriage that anything that they do
that's incredibly stressful for the
first 12 to 20
weeks will put them at a higher risk for
it so being very cautious especially
with cold because we know that there are
so many different nuances doing
something like hot yoga when you're
pregnant is not there is a research so
it's not
detrimental yeah because when we're
looking at blood flow diversion that way
when you have slight hypoxia to the
placenta and to the baby there is a
rebound effect that increases the
vascularization so that the baby has
better nutrients we see this also with
like exercise and exercise intensities
this is why people people are now saying
you need to have some kind of blood flow
change and increase in core temperature
to create these vascular effects within
the placenta to improve nutrient and
nutrient delivery to the developing
fetus so Heat's good cold I'm not so
sure of but probably not extreme heat
not extreme heat so that's why I mean
like hot yoga is not going to the sauna
Hot Yoga sits around 40° Celsius so what
is that just around 100 degrees
Fahrenheit
and in that situation if you're feeling
too hot you leave you lie down on the
floor don't try to stay for the whole
class um but it's not going to be
detrimental unless you're pushing
yourself too much again everything in
moderation especially when you're
pregnant it's almost the inverse of what
we know for males which is if men want
to conceive they should avoid the sauna
because we know that heat is detrimental
to sperm viability in a in a real way so
much so that I tell guys if they are
trying to get their partner pregnant
that they should bring an ice pack into
the sauna they should insulate that ice
P don't put it directly on the scrotum
for for other reasons but that it's a
you know that the effects of heat the
negative effects of heat on sperm are
are real yeah but there's also an
interesting it's not just a trend
there's actually some research showing
that um cooling the testicles leads to
increases in testosterone which is on
the face of It kind of um
counterintuitive
because turns out that it's about the
Vaso
constriction causing the subsequent
increase in blood flow increased Vaso
dilation so the inverse of what you just
said which is that during the heating
process the hypoxia induces more
vascularization of the of the placenta
yeah so um when talking about
temperature one always has to think
about the surface of the body versus the
brain response as we talked about
earlier and then what's happening during
the delate heat or deliberate Cold
versus what's happening after the
deliberate heat or deliberate cold right
everything in biology is a process not
an event yeah and I should make full
disclosure I started as an environmental
exercise physiologist and my PhD was all
in heat and heat research so I'm a
little bit biased towards heat but I've
done a significant amount of research in
the hot and cold thank you for the
disclosure uh I see it more as a uh as
an indication of of real knowledge so
thank you this is an aspect of your
training I I knew a little bit about
based on your Publications but I didn't
realize the depth of knowledge so we're
all benefiting here including this
earlier protocol of sauna post training
you can bet a lot of people are going to
start incorporating that I think we
might need to name that I've done this
from time to time named protocols um
because people are reluctant to name
them after themselves maybe we call that
the um the uh The Sims protocol or
something like that
the anyway your discomfort will be other
people's U
benefit now seems like a good time to
address some specific questions related
to the age brackets that you mentioned
earlier um in anticipation of sitting
down with you today I asked some
different women that I know you know if
you could ask the world expert in
exercise physiology hormones and um and
nutrition Etc as it relates to women one
question what would it be and one of the
most common questions I got in the 50
and up category was what is the most
efficient way for a woman older than 50
to train for the maximum health span and
lifespan benefits I love this question
because I get it all the time we have to
turn our brains away from everything
that's been predicated before to this
point so if we're looking for longevity
and we're looking at what we want to do
when we're 80 or 90 we want to be
independently living we want to have
good propri reception balance we want to
have good bones and we want to be strong
so this is where we look at 10 minutes
three times a week jump training so this
isn't your Landing softly in our knees
this is like impact in the skeletal
system uh a colleague in friend of mine
Tracy kle did a PhD and um post not a
postto but post research on this and is
developing an app on it to show women
how to jump to improve bone mineral
density over the course of four months
of this type of training people have
gone from being Osteo um pic to normal
bone density so it's a different type of
stress so if your concern is that which
a lot of women do have a concern because
they lose about onethird of their bone
mass at the onet of
menopause wow yeah significant yeah
goodness gracious if you don't do
something as an intervention so we see a
lot of women are like oh I'm going to go
on menopause hormone therapy to stop um
bone loss yeah it can be a treatment but
I always look at an external stress that
we can put on the body that's going to
invoke a change without Pharmaceuticals
so jump training heavy resistance
training and Sprint interval training
those are the three key things and from
a training standpoint and then from a
nutrition standpoint getting protein
protein is so important when you start
telling women they need to look at
around 1 to
1 1 G per pound which is around that 2
to 2.3 G per kilo per day they're like
whoo that's a lot of protein it is
because we haven't been conditioned to
eat it few scrambled eggs it's a chicken
rest at lunch it's a small steak at
dinner plus other things right exactly
and it doesn't all have to be animal
products I mean you're looking at all
the different beans and things that you
can put together and that's the other
big thing that in order to build the
muscle and to keep the body composition
in the state that we want it to keep
going for longevity those are the big
rocks the Sprint interval training the
heavy resistance training the jump
training and the protein I'm thinking
about this and I'm thinking about my my
mother who's 79 years old she'll be 80
at the end of June and is in good health
walks a lot Gardens does some yoga but
does none of the things that you're
describing so Mom please I'm gonna I'm
going to um send her to listen to this s
in the same vein yeah what about the
women out there age 20 to maybe we make
it the 20 to 40 bracket um and if we
need to divide that more finely we can
um um what is the most efficient way for
them to train for health Vigor and
Longevity uh making things fun for the
most part I don't want people think that
it's a chore so if you're someone who's
been told you need to run and you hate
running then don't run like that's
common sense and I say that because I
see little kids in non- US countries
that have to run across country and you
see these kids when they're six years
old and all running around the field and
they're the the kids that hate running
that aren't natural Runners and then
they hate physical activity for the rest
of their life so I put that in like when
you are exercising you want to find
something that you find fun when you're
in your 20s to 40s you have more room to
get away with things that might not be
optimal for you when you start to get
older big rock again is resistance
training it doesn't have to be heavy
resistance training like I said earlier
to failure you're periodizing if you
want to do a block of Olympic lifting go
for it if you're like I'm not
comfortable doing that kind of lifting I
want to do more machine stuff great but
we want to make sure you're changing it
up all the time to keep things moving
and shaking with regards to strength and
hypertrophy and then it becomes more of
are you training for something that's
endurance are you looking for just
longevity for brain health we need to
have some lactate production because
women as I said at the beginning of the
podcast are more oxidative we don't have
as many of those glycolytic fibers so
what we're finding in older research is
that there's misstep in brain lactate
metabolism because the brain hasn't been
exposed to it especially if we're
looking at women who are being studied
now it hasn't been in a societal context
to do that kind of work the younger we
are and the more that we can keep our
our glycolytic fibers going by doing
high-intensity work the more we're
exposing our brain to lactate the better
we see fast forward to attenuating
cognitive decline and reducing the
plaque development of Alzheimer's this
is why women who are in their 40s plus I
want them to do the Sprint and the high
intensity work for that lactate
production start early because then you
can take some of those type two B fibers
that could either go more aerobic or
anerobic and make them more Anor robic
so those are the two big things for
women who are younger and then you can
play around with the other things if you
want to be an ultra endurance athlete
yeah not really ideal but yeah you can
do that that's fine you'll recover well
now forgive me because you've said it
several times throughout today's
discussion but I really want to drive
home a key point that I think for most
people men and women is not obvious but
is really important when you say high
intensity you don't mean a class or a
run uh where you're drenched in sweat
and gasping for air at the end
necessarily correct let's disambiguate
high intensity from what most people
think of high intensity which is a
really hard workout a tough class where
they had me moving the whole time doing
a circuit Etc what does the appropriate
high-intensity workout look like okay so
uh if I talk about true high-intensity
interval training if you're a runner
it's going to the track and doing sets
of
4800s okay so 400 a lap yep 800 two laps
right so you're looking at between a
minute and four minutes of of hard work
at 80% or more with variable recovery so
that's why use a track as a as an
example so if you do one lap and you're
like uh I'm going to walk half a lap and
then do it again that's adequate
recovery tough yeah it's hard right but
it's not like you're going to be there
for 90 minutes doing as many 400s as you
can because you have that variable
recovery it might take half an hour to
40 minutes max and then you're gassed
out can't do it anymore if you're
looking at a gym situation I look I I
like to look at something like every
minute on the minute where you might be
doing uh 10 deadlifts at moderate
intensity weight and it Tak 10
repetitions yeah so it takes you 50
seconds to complete that then you have
10 seconds to move to the next exercise
that might be thrusters so you know a
squat clean thrusters so it's a squat
pulling the weight up overhead so you're
doing maybe eight of those in that
minute and you might have 10-second
recovery you go to the next exercise
that might be um kettle bell swings and
you're doing explosive kettle bell
swings and you'll finish you know 10
seconds to go you go to the fourth
exercise I don't know toes to bar or
some other kind of vup some other high
intensity and then you have one minute
completely off so you've had four
minutes of really heavy work with maybe
10 seconds to move to the next exercise
one minute completely off and then you
repeat that three times and this is
high-intensity interval training this is
not what you would consider resistance
training for sake of building muscle or
strength correct you're using these
loads these machines the the pike you
know hanging from the bar and bring your
knees up or lsit or something as a tool
to get the heart rate up continually y y
very different than resistance training
the mo the way most people think about
it correct so this is the cardiovascular
high-intensity interval training and the
subset of that is Sprint interval
training and this is something that's
really really hard and people don't get
it I don't necessarily mean running it
can be whatever mode of activity but
it's 30 seconds or less as as you can go
so this is your N9 or 10 on your rating
and perceived exertion 110% it's Max
effort on the rower on the airdine bike
running if you like of those the skier
the battle ropes battle ropes are big so
30 seconds all out then rest what 10 15
seconds repeat no you want to because
now we're looking at that top end where
we
want uh regeneration of your ATP you
know all of that system and central
nervous system recovery so this is 30
seconds all out could be two or three
minutes of recovery oh nice because I'm
not looking at Tata where you're 20
seconds on 20 seconds off because that's
not the intensity we want we want you to
go all out and recover well enough to be
able to go all all out again you're not
leaving anything in the tank so those
are what I mean by high-intensity
interval training or or when you're
looking at polarizing your
cardiovascular work that's the top end
those are the two examples of your top
end and then your recovery is that long
slow walking on another day where you're
not going and doing a tempo run you're
not doing a 5k easy jog because that put
you in that moderate intensity and if I
heard you correctly earlier you are
suggesting most women do one or two days
of high-intensity interval training plus
3 to four days of resistance training
for sake of building strength and muscle
which looks very different it's more
warm up do
a couple work sets you know two to four
work sets of you know an overhead press
two or four work sets of maybe a barbell
curl two or four sets of some dips or
whatever whatever um one's you know
personal choices yeah okay got it um
very different Far and Away different
than what most people men or women are
doing out there which is um a lot of
StairMaster treadmill jogging maybe some
Lifting for hypertrophy because I look
at the general consensus of what's out
there in the fitness world is all based
on Aesthetics and body composition and
so people have this mentality of I need
to be hypertrophy to Get Swole and I
need to do long slow stuff on the cardio
machine to lose body fat but that isn't
what we're after we're after let's
create really strong external stress to
create adaptations not only from a
neural and a brain standpoint that's
understanding it but but also feeding
down to metabolic change because if you
have a really significant high stress we
see epigenetic changes within the muscle
that increase the amount of what we call
the glute four Gates so you know the
proteins that open up that allow
carbohydrate to come in without insulin
so we're expanding that acute um glucose
uptake through an epigenetic change the
other thing that it does is it causes a
an acute inflammatory response that your
body learns to overcome and it's really
important for women to do that because
as we start to lose estrogen we lose a
significant anti-inflammatory agent so
this is why we see that increase in the
visceral fat especially when we're
hitting your your mid-40s onwards is
because now you have this increase in
free fatty acids and the inability for
inflammation to come down so the muscle
cell is going I don't know what to do
with this so get circulated to the liver
and the liver stores it as visero fat
whereas if you do that high intensity
work it creates that change within the
muscle to understand pull that in let's
use it let's also bring more
carbohydrate in and more glucose in use
that which helps use free fatty acids
and it also creates a significant
anti-inflammatory response at the level
of of the mitochondria and within the
cell itself which is what estrogen used
to do so if we look at those external
stresses it's not about body comp and
Aesthetics per se it's about the
molecular changes that we want to invoke
to get that body composition and the
brain health that allow us to be 80 or
90 and independently living and in terms
of nutrition you mentioned women should
shoot for 1.1 1.2 grams of quality
protein per pound of body
weight what other types of foods do you
like to see women ingesting so um are
you a fan of fruit yeah great well these
days you sort of have to ask in these
circles uh vegetables y yeah fiber is
important yeah absolutely and then in
terms of starches to um to replace
glycogen especially if people are doing
these high-intensity interval training
sessions and the resistance training um
what are your preferred sources it
depends on who I'm working with uh I
have some people who love cocoa pops and
kids cereal o i cringe at that stuff um
but you know I prefer I prefer rice and
oatmeal and I like a really good
sourdough bread with butter or olive oil
you know guilty of that yeah but there
are some people who like the ultr
processed stuff so I'm like okay if you
really really need it then you can put
it on top of your yogurt after training
as part of your carbohydrate uptake it's
the only time because glute four levels
are so high you're basically pulling
everything into glycogen at that point
anyway um but
ideally carbs are all the different
colorful fruit in veg and if we're
looking at sweet potatoes or Kuma if
you're from other parts of the world
yams all those kinds of things sprouted
bread fantastic kenoa amorth all of
those different types of things it's
just staying away from the ultra
processed and when we look at women it's
really important to have a very
significant diversity in the gut
microbiome so we see there's a
definitive decrease when we start to
have hormonal shifts because of the way
the gut bugs help deconjugate or unwrap
some of our hormones and shoot them back
out in the circulation so as much fiber
colorful fruit and veg as you can but
also it's the 8020 rule right 80% of the
time you're spot on 20% is life because
otherwise where do we get our chocolate
and our whiskey and there's some data
that chocolate is good for us especially
the the low sugar dark chocolates what I
look at is how it makes you feel makes
you feel good right yeah yeah we one has
to live yeah um and fats um where do you
like to see women get their fats from
again I'll do a full disclosure I have
been um vegan since I was in high school
because of an incident of a field trip
to a pig slaughter house and driving
down the five but that's my own
preference so when we're looking at fats
um it can be from a lot of different
sources I prefer women to have most
their fats from plant-based stuff not
because I am plant-based but because of
the effect it has on the body but there
is a time and a place for animal fats
too um um the whole fear mongering of
saturated fatty acids from dairy has
been disproven so if we're looking at
what kinds of fats you want a
conglomerate but you want most of them
to come from Whole Food plant-based not
from Ultra processed um and then of
course you're reaching for some real
butter you're reaching for some 4% fat
yogurt or something like that to
complement your avocados your nuts your
seeds and your olive
oils that all sounds very r and
delicious in my opinion yeah it's it's
too Common Sense people don't do it I
think if people hear it from you they'll
do it um I think people just need to
hear it in the context of a
non-diet um context and you've done an
amazing job today of explaining how
nutrition fuels training training fuels
changes at the level of the muscle the
liver Etc that allow one to ingest more
fuel in fact a lot of what I'm hearing
is that women should probably ingest
more quality fuel
to offset these cortisol spes and feel
better while training and to train more
which um everyone agrees provided it's
done properly is is great for
us kind of a fun hopefully fun question
for you if you had a magic wand and you
could get all the women uh on earth now
and going forward to make a change or
changes you don't have to pick just one
in terms of nutrition how they think
about their hormone cycle exercise
Health span lifespan what would it
be I think I would have everyone
understand their intrinsic selves
because we have been inundated so much
with sociocultural rhetoric and so much
external noise that women have forgotten
what it means to listen to themselves
and their bodies I mean that's the one
thing that I have to retach women to do
so often so if I could have a magic wand
and have every woman understand what
their bodies are saying and what their
Cycles are saying and per menopause is
normal it's everyone's going to go
through it if you have had a menstrual
cycle just to intrinsically understand
what their body is so then they have the
tool to be able to implement external
stressors that's going to be beneficial
for
them well Dr Stacy Sims this has been
tremendously educational for me and I
know for everybody listening and are
watching um you've taken us on an
amazing tour of the best ways to train
with cardiovascular training and
resistance training those tailored
specifically for women as well as
touching into some protocols for both
men and women that are immensely
powerful talked a lot about the
menstrual cycle I get asked about the
menstrual cycle and how it relates to
training and vice versa so many times
and um thank you for providing clear
actionable answers and you've also
educated us on caffeine supplements
including um revealing some supplements
that I didn't know existed which is a
which is a uh not a common occurrence
for me yeah I win and um many wins many
many wins thanks to you and on and on so
just such a a rich data set here um
presented with such Clarity and in an
actionable way so on behalf of myself
and everyone listening and watching I
just want to say thank you I know I know
you've come a very long way from the
other side of the Equator not just to
see us but given that your time is so
precious um that you've come to visit us
and share with us your knowledge I just
want to say uh a really deep heartfelt
thank you yeah thanks for having me it's
been fun and we'll have to have you back
again maybe we'll come to New Zealand
you should come down definitely thank
you thank you for joining me for today's
discussion with Dr Stacy Sims to learn
more about her work please see the links
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