Episode 96

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Published on:

27th Oct 2025

81:: 10 health & wellness jump scares (Halloween special!)

This week, we’re diving into some science that might just blow your mind — starting with the fact that sperm aren’t just built for fertilization. In reality, only a small fraction of sperm are meant to fertilize an egg. The rest? They work together to create the perfect environment for fertilization to even happen. From neutralizing vaginal acidity to distracting the immune system’s “guards,” sperm are strategic little players.

We’ll also break down:

  • Male fertility & pregnancy outcomes: How paternal health can impact preeclampsia risk and why sperm function is more complex than you think.
  • Female physiology & training: Why your early strength gains have nothing to do with bigger muscles, and how your cycle affects motivation, energy, and endurance.
  • Creatine & the luteal phase: Why creatine loading can help with energy, mood, and bloating during the second half of your menstrual cycle.
  • Pain science myths: Pain isn’t just a signal from injured tissue—it’s your brain’s interpretation of threat.
  • Body fat and menstrual cycles: The minimum body fat needed to start and maintain your period, and why this matters for athletes.
  • Breastfeeding 101: Why milk production is hormonally driven at first, and why regulating it early on isn’t always in your control.
  • Fat loss facts: Why you can’t spot-treat fat loss and what actually works for body composition changes.
  • Muscle fibers in women: Why women’s muscles resist fatigue longer and why HIIT and SIT might give us more bang for our buck than endless Zone 2.

Whether you’re here for the science, the menstrual cycle tips, or just a better understanding of your body (and his), this episode is packed with evidence-based gems.

Dr. Katie Hirsch episode: 

https://wellness-big-sis-the-pod.captivate.fm/episode/49-female-specific-fueling-training-performance-with-dr-katie-hirsch-fasting-creatine-the-menstrual-cycle-more/ 

Board-Certified Lactation Consultant Episode:

https://wellness-big-sis-the-pod.captivate.fm/episode/mamapalooza-breastfeeding-secrets-and-qa-with-board-certified-lactation-consultant-sunayana-weber-of-its-more-than-milk/

https://wellness-big-sis-the-pod.captivate.fm/episode/copy-of-img-0565/ 

Male Fertility Episode:

https://wellness-big-sis-the-pod.captivate.fm/episode/mamapalooza-top-moments-sex-creatine-male-fertility-more/ 

Female muscle physiology episodes: 

https://wellness-big-sis-the-pod.captivate.fm/episode/73-the-controversial-hiit-sit-conversation-why-both-are-essential-parts-of-our-exercise-routines-as-women/ 

https://wellness-big-sis-the-pod.captivate.fm/episode/75-/ 

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00:00- 00:17 Intro

00:18- 01:03 Welcome to the Halloween Special

01:04- 02:14 Surprising Facts About Sperm

02:15- 04:07 Creatine Loading for Women

04:08- 05:24 Understanding Pain Perception

05:25- 06:15 Menstrual Cycle and Motivation

06:16- 06:51 [Safely]

06:52- 07:30 Body Fat and Menstrual Health

07:31- 08:06 Breastfeeding Insights

08:07- 08:39 The Truth About Spot Fat Reduction

08:40- 09:33 Male Fertility and Preeclampsia

09:34- 10:04 Initial Strength Gains Explained

10:05- 11:03 Female Skeletal Muscle Facts

11:04- 11:30 Halloween Wrap-Up

Mentioned in this episode:

Live Safely Sidekick

Transcript
Speaker:

It's spooky season, so welcome

to a little Halloween special

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health and wellness jump scares

things about your body that

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might actually surprise you.

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Welcome back to Wellness Fixes the Pod.

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I'm your host, Dr.

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Kelsey Vick, a board certified

orthopedic doctor, physical therapy,

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and a pelvic floor physical therapist.

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And I figured it's a little bit of a

themed episode today, but I thought

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it'd be fun to chat about, maybe not

jump scares, but just surprising.

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Things about our bodies as women

primarily, but there's actually a

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few male fertility facts in here too,

because they do affect us as women.

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So I thought it'd be fun to talk

about 10 of the most surprising facts

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about our bodies and how they work.

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So it'll be a fun casual,

little spooky, fun fact episode.

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Number one, sperm aren't

just built for fertilization.

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This one isn't about our bodies as women,

but it's more of a male fertility fact.

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The minority of sperm released

are actually for fertilization.

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The majority of sperm that are released

are for creating the right environment

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for sperm to thrive, helping attack

some of the female immune response

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so that sperm can actually thrive and

flourish and fertilization can happen.

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So most sperm are actually

not related to fertilization.

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The female reproductive system is

extremely acidic, so it's very poor

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for sperm life and sperm movement.

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So some sperm helped to

neutralize the acidity.

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The female reproductive system is very

viscous, so it's like thick mucusy and

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it's very poor for sperm traveling.

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Of course.

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Just logistically it's harder to move

through a more viscous substance,

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so some sperm helps to liquefy the

environment a little bit more to

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help with the general motion of sperm

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And the female reproductive system

has a very strong immune response,

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which is good to ward off invaders,

but some sperm are actually in charge

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of distracting the guards, basically

to allow for fertilization to occur.

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Number two, this one's one of my

favorites, but creatine loading has

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been shown to help decrease some of

the more negative symptoms we have

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during the luteal phases of our cycles.

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And honestly all phases, but a lot of the.

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Negative side effects of our cycles

and the negative things that we go

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through happen in our luteal phase, and

creatine can help offset some of that.

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So there's a few recommendations.

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The normal recommendations are five

grams of creatine per day, but in

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your luteal phase, there's a potential

switch, and it's called creatine loading.

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It's five grams for four times a

day, so 20 grams a day total, but

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split into increments for five days,

followed by five grams twice a day.

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So you're moving from 20 grams a

day for five days to 10 grams a day

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For five days, and then you

can slowly titrate back down

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to five grams one time a day.

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But you still one serving is

still that five grams a day.

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It's not like you can just load up

20 grams at once and call it good.

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You do have to time it,

which can get tricky.

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I've been doing that over

the last few months since Dr.

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Katie Hirsh talked about it on her

episode, so I'll link that episode below.

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But yes, it is a little bit hard to

time it right to get the five grams

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just throughout the day, but it

has significantly helped with some

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of my symptoms during my luteal.

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So in our luteal phases, our

basal metabolic rate increases,

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meaning we require more a TP, more

energy for cellular functions.

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Hormonal shifts can lead to water

retention, bloating, breast tenderness,

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and there's neurotransmitter shifts that

can lead to mood changes, irritability,

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anxiety, and sleep disturbances.

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So creatine benefits us by

helping to reduce fatigue and

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improving our energy levels.

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Enhancing our cognitive function,

mood stabilization, and overall

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less bloating because it transitions

water from extracellularly, like

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where we might feel a little bit

more puffy to intracellularly,

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like in the muscle tissues.

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So I'll link that episode

that we did with Dr.

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Katie where she mentions this

below, but it's been a nice little

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tool in my toolbox, let's say,

to help her in the luteal phase.

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Number three, pain is not

a signal sent to our brain.

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We have no pain messengers, but

it is the response our brain comes

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up with if it feels we need to

be protected, if there's danger,

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And it doesn't just rely on the tissues.

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Damaged pain can be amplified by

other things, external circumstances.

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Our mental state, different

hormonal fluctuations, different

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chemicals within the brain.

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It's not just the tissue

damage that causes pain.

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There's actually been a study done.

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That pain can be amplified based on the

color that we see at the time of paint.

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So if we're seeing red light

and our hand touches an

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extremely cold surface, we will.

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Register that as more painful

than touching the exact same cold

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plate with a blue visual light.

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So there's different factors that

help our bodies to register Pain.

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Pain can also be amplified

based on past experiences.

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For example, neck pain is worse in

the general population and last longer

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compared to demolition derby drivers

who go through high impact collisions

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for their job all the time, so neck

pain in the general population who

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might not undergo this sort of job

or career is usually more intense

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and lasts longer compared to the neck

pain of demolition derby drivers.

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Number four.

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We have differences in motivation and risk

tolerance throughout our menstrual cycles.

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In the late follicular phase,

just before ovulation, we

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approach opportunities quicker.

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So we approach rewarding stimuli

quicker, especially as it relates

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to money or social rewards.

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And we overall have a

focus on opportunity.

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In this phase, in the mid

luteal phase, we have a quicker

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avoidance of negative stimuli.

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A lot of it has to do with.

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Evolution or there's a theory that

the reason we avoid these negative

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stimuli quicker in the luteal phase

is because should fertilization

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have occurred, our body wants

to protect that developing baby.

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So that's one of those evolutionary

theories for why this happens throughout

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our cycle, but we have a quicker

avoidance of negative stimuli, and

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there's a focus on threat avoidance

versus approaching opportunity.

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I can't even remember

what number we're on.

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I think five.

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But you need a certain amount of

body fat to even have a period.

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We need about 17% body fat in order

to start getting our periods and about

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22 to 28% to maintain our periods.

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This is why gymnasts, youth

runners, ballerinas, Their sport

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either promotes or has a tendency

towards lower body fat percentages.

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A lot of those girls get their periods a

little bit later because they don't quite

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have the body fat percentage minimum to

even get their periods in the first place.

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Another fun fact, fat is actually a

molecule that helps with our hormonal

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regulation from estrogen to leptin.

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So fat is definitely necessary.

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Number six, breastfeeding is

endocrine or hormonally driven

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for the first four to six weeks.

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Then it becomes baby driven.

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So when we talk about regulating milk

supply and different things, that four

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to six week mark is where that regulation

can start to occur, where it becomes

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baby driven and more pump driven.

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But those first four to six weeks, it

is hormonally and endocrine driven,

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which I learned this past May, when we

interviewed Sina, who's an international

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board certified lactation consultant,

and she actually told me that, and I

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thought that was so cool that our bodies

just know how to do that hormonally

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immediately after we have a baby.

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And then it becomes baby driven.

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Number seven, we cannot

spot treat fat loss.

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Fat loss is a systemic process.

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I feel like a lot of people are

starting to understand this,

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especially if you are listening

to a health and wellness podcast.

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You probably already realize this,

but when people say, lose your fat

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in your lower belly by doing more ab

workouts, lose that inner thigh fat

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by doing more inner thigh workouts

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It's not actually true.

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fat loss is systemic.

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We can't choose where we lose fat

from within our body or where we

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utilize fat for fuel within our bodies

through the exercises that we do.

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It just doesn't work like that.

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Number eight.

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Another male fertility fact that

actually affects us as women

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revolves around preeclampsia or high

blood pressure during pregnancy.

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the chance of preeclampsia in the female

was significantly higher with paternal.

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So father obesity compared

to the normal BMI group.

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As paternal BMI increases, the

rate of preeclampsia rises.

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13 to 19% of the development

of preeclampsia can be

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attributed to the male.

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We've done an entire male fertility

episode, so I'll link that below.

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That was during our Mama Palooza

Women's Health Podcast Festival event.

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Back in May, but I thought it was

interesting to start to look at

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the other side of the equation.

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Since oftentimes we focus on

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The female side of fertility, but

there's an entire male side of it too,

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obviously, that I feel like needs to

be talked about a little bit more.

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And what better way than to introduce

it to a bunch of girls and women who

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might be able to introduce it to their

significant others or partners, especially

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if they wanna get pregnant one day.

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Number nine, the initial

increase in strength.

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The first four-ish weeks of a new

strength training program actually

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has nothing to do with actually

increasing the size of your muscle.

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It has more to do with the

connectivity between your brain

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and your motor units, so it's more.

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About neuromuscular connections

versus actually just skeletal muscle.

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If you have better communication

from your brain to your muscles,

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you have better recruitment and

therefore increased strength.

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So that's in the first four-ish weeks.

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After that, then a lot of the strength

improvements start to come from actually

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increased muscle size or hypertrophy.

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And then lastly, female

specific skeletal muscle fact.

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So this is jump scare number 10.

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Women have more slow twitch fibers

than men, so we have better endurance

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overall, but slightly less power.

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Women's skeletal muscles, because we

have more type one fibers are also more

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fatigue resistant, Women's skeletal

muscle resists fatigue for longer than

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men during sub maximal tasks, even though

our overall strength is lower than men's.

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So just different sort of fun facts.

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We all have skeletal muscle tissue,

but the distribution between type one,

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which are those like slow twitch, more

endurance based muscle fibers, and

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type two, which are more of the fast

twitch speed, power-based fibers, the

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ratios differ between men and women.

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I'll link that episode where we chat

more in depth on that below if you're

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curious and wanna get a little bit

deeper into the science behind it and

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why women might need to prioritize

certain sprinting power-based activities

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more so than men, because we don't

necessarily have as many of those fibers.

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So we have to train it to improve it,

but then train it to also maintain.

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So happy Halloween to all

of those who celebrate.

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It's not my favorite holiday necessarily.

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, I'm a scaredy cat, honestly, but

I feel like it's a fun little

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Halloween special episode.

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My look is a little Halloween togo's

joining me right here for He, he

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wanted to make a little appearance

on this Halloween episode too.

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So I hope you guys enjoyed these 10 health

and wellness jump scares in honor ofs.

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Spooky season and I'll see you

guys again on the next episode

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of Wellness Exists, the pod.

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About the Podcast

Wellness Big Sis: The Pod
Wellness Big Sis: The Pod (By Maven Media) includes wellness girl chats by host, Kelsy Vick, a board-certified orthopedic Doctor of Physical Therapy. Join us as we learn about our female bodies and all aspects of wellness, creating a sisterhood of empowered wellness big sisters... without the clothes-stealing ;)
@wellnessbigsispod
@dr.kelsyvickdpt

About your host

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Kelsy Vick

Dr. Kelsy is a Board-Certified Orthopedic Doctor of Physical Therapy, a Pelvic Floor Physical Therapist, and the Founder of elää wellness, a global wellness education and action agency for women. As the host of wellness big sis:: the pod, she hopes to share science-backed education for young women in a fun and simplified way. Join us!

elaa-wellness.com
@elaa_wellness
@dr.kelsyvickdpt