StarTalk Radio - Hormones on Steroids with Dr. Aniket Sidhaye
Episode Date: August 12, 2022How do hormones affect us? On this episode, Neil deGrasse Tyson and co-hosts Chuck Nice and Gary O’Reilly explore the body's endocrine system, steroids, hormones, and how we can hack it with an endo...crinologist, Dr. Aniket Sidhaye.NOTE: StarTalk+ Patrons can watch or listen to this entire episode commercial-free here: https://startalkmedia.com/show/hormones-on-steroids-with-dr-aniket-sidhaye/Photo Credit: quimono, CC BY-SA 4.0, Pixabay through Creative Commons via Wikimedia Commons Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to new episodes ad-free and a whole week early.
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Welcome to StarTalk, your place in the universe where science and pop culture collide.
StarTalk begins right now.
This is StarTalk Sports Edition.
Neil deGrasse Tyson here, your personal astrophysicist and co-host of this podcast.
I got with me my two other co-hosts. Chuck, nice. Chuck,
how you doing, man? What's happening, Neil? I'm hot. I'm doing hot. Okay, professional,
again, well, it's summertime. Let it be. No, I was actually just complimenting myself, Neil.
No. I'm glad you feel that way about yourself. Okay. This is the first step towards recovery.
Exactly.
Professional stand-up comedian, we love you here.
And I love you as my co-host.
And we also have the only one who gives this podcast its authenticity
is Gary O'Reilly, former soccer pro.
Gary, always good to have you, man.
Oh, it's a pleasure.
It's mine, Neil.
Thank you.
Also, professional sports commentator, which I only learned very late
because I was distracted by your soccer talent.
And I was not thinking of you in any other way.
Plus, there's a wiki page on you in case people want to see your legs.
Yes.
Don't do that.
Check out those gams, people.
You got to see Gary's gams on the wiki page.
Back in the day. My boy got his soccer wiki page. That's cool. Sexy boy, I the page. Back in the day.
My boy got his soccer wiki page.
That's cool.
Sexy boy, I tell you.
We're loving it.
Now, Chuck.
So what we're going to talk about today
is the endocrine system.
Oh my gosh.
We are long overdue for a show on this subject.
I remember in high school learning about biology.
You know, there's a heart and a liver and lungs
and all that.
You have skin and blood. And then I learned about the endocrine system. I was like, oh my God. It's like, we don't
just have stuff in our body. We have chemistry going on in our body. And so obviously none of
us have this expertise. We had to reach for it as we always do. And I think we always do really well.
And Gary, so set up the
table here. What do we have? Oh, with pleasure. So we started this show by asking a simple question
in a production meeting. How do anabolic steroids work in the human body? And then as you were just
saying, in the human body, you've got a variety of systems, a digestive system, respiratory system,
immune system, and we know pretty much all about them. But the chances are
we don't really know a lot about the endocrine system, what it does, how it does its thing,
what happens if it goes wrong. Can we tweak it for our own good, say with anabolic steroids? And
how can we make that work? And from that initial question, we got a whole load of wow.
work? And from that initial question, we got a whole load of wow. So when you say tweak it,
you mean how can we game it for our own? That's what you really mean there. So this is the element of like, you know, okay, but everyone's looking for advantage. It's a competitive world, sports
competitive by nature. So what if, but we needed to know more about how the whole structure works.
And that's the takeoff point for this show. Of course, we needed an expert, and I'm pleased
we found this young gentleman. Dr. Aniket Siddhai from John Hopkins Medicine, where he is Program
Director for Endocrinology and Metabolism Fellowship. He's also Associate Professor of Medicine and expert in cystic fibrosis-related endocrine disorders.
So, having said all of that, let's meet the good doctor.
Hello.
Aniket, welcome to StarTalk.
Thank you very much, Neil.
I'm excited to be part of this conversation and so glad to hear you all are interested in the endocrine system.
Oh, my gosh.
You're so young. Oh, my gosh. You're so young.
Oh, my God.
Can I pinch your cheek?
Can I do that?
Yeah.
There's a lot of jealousy this side.
We'll put some old farts on here.
You know, when I went for my jog this weekend, I didn't feel that young.
Oh.
You know, if you're an expert on the endocrine system, you should never feel any way that
you shouldn't.
I'm thinking. that's just me.
I don't know.
So could you just start us off?
I want our audience to be just as mind-blown as I was when I first learned what the endocrine system does.
So you just give us like a three-minute overview.
I know that's not much time, but you can fit it in, I'm sure. You're
also a professor. Please sum up all of your academic findings and career in 90 seconds.
So what do you have? You know, in a way, it is a system by which one part of the body talks to the
other, but to maintain balance. And the way it does this is by the secretion of hormones. And the definition
of a hormone is pretty simple. It's a substance that's secreted in one part of the body.
A chemical. It's a chemical. Yeah, it's a chemical. And it goes to another part of the body
and tells that part of the body what to do. But what's really important about the endocrine system
is that in almost all of the
hormones, there is a feedback loop that involves control. And that's probably what helps it
maintain balance in the body. So all of the hormonal systems have this sort of, we call it
homeostasis or balance effect on whatever it is that they're supposed to be regulating.
I'll give the example of insulin because I think a lot of people know about insulin and diabetes and blood glucose.
So, insulin is the hormone that helps maintain blood glucose levels in a very, very narrow
range. And the way it does this is super interesting. So, Aniket, that glucose,
that's just one of the sugars, right? They all end in O-S-E, last I checked, right?
That's absolutely correct.
Like fructose and mannose and galactose.
Yeah, galactose and...
Galactose, you should love that one, Neil.
Well, by the way, it's not an accident that the Milky Way galaxy,
the very word galaxy comes from its reference to milk
and the Milky Way and lactose and all this.
Yeah, it's very related from the Latin and, of course, Roman times,
but ancient Rome.
But go on.
This is not about astronomy.
This is about…
Right, right.
All right.
Yeah, so glucose actually stimulates the pancreas to make insulin.
So as the glucose levels rise,
the pancreas has this mechanism of increasing the amount of insulin that's secreted. And then that
insulin goes to muscle and fat predominantly, but other tissues as well. And it tells those
tissues to take up the glucose from the bloodstream, thereby returning the glucose back
down to the normal range. As the glucose comes down, the insulin levels come down as well. So
you can see it's this mechanism by which the glucose is the stimulator. The insulin goes up.
Once the glucose comes back down, the insulin comes back down.
What you're saying is the pancreas doesn't know better.
Because if it did, you wouldn't have all these extra overhead steps for all this to work.
Yeah.
I mean, I guess it would be great if it could just get it done.
But no, that's the whole point of what you're saying, right?
It's the messaging between the two that keeps the balance.
Yeah, but Chuck, that's another point of failure.
A possible failure in the human body.
Isn't it? That's because you're looking at
it from the standpoint of
some guy who shoots crap
into space.
I'm just saying,
if we have points of failure, I want to
know about it. I want to reduce them as much
as possible. And you're telling me
you have an endocrine system that tells something else what chemical to put in and how to take it out.
And that's too many people in the command chain.
Well, you know, of course, you know, when this system fails, we get diabetes.
Yeah.
So to your point about points of failure.
Yeah.
All right.
So, doctor, is there a command center? Is there some ultimate control center for all of this endocrine system?
Or is it systems within systems that manage each other?
Or can they cross out into other systems?
So, they can definitely crosstalk with other systems.
But in terms of a command center, there happens to be one organ that controls multiple different endocrine systems.
The brain.
Yes.
Just below the brain is the pituitary.
Pituitary gland?
And that unit over there controls how your body makes stress steroids
that help you respond to stress, like cortisol.
It helps you make the sex steroids.
Oh, right.
So testosterone.
Yep, there you go.
Just for you, Chuck. Yeah testosterone. Yep, there you go. And...
Just for you, Chuck.
Yeah, of course, of course.
Right.
And for all of those who have kids
and want them to grow,
it helps regulate the growth hormone system.
So there is one gland
that happens to control
multiple different systems.
So what does the hypothalamus do?
Oh, so super, super question.
So the hypothalamus sits above the pituitary.
The hypothalamus sits in the brain,
and it sends the signals down to the pituitary to make their hormones.
I told you.
You see?
You see?
You know what?
I'm starting to agree with Neil there.
This is a house of cards, Mark.
Our bodies are stupid.
This is a house of cards. Oh, Mark. Our bodies are stupid. This is a house of cards.
Oh, man.
So we've got all these little moving parts that are command centers,
but are there different types of cell signaling that take place,
or is it all one mode, or does it come with a variety of settings?
So this gets to how do hormones actually act.
And they all act by interacting with a receptor.
And that receptor either goes into DNA and regulates genes.
And I know you guys have had people come and talk about genes and gene expression.
Or that receptor helps change predominantly how proteins work.
And so they all interact with specific receptors,
and that's how you maintain specificity in each system.
So do old wasp families in the United States have blue genes?
Oh, Neil.
That's not a mandatory answer.
I'm sorry.
It's so much better than Wranglers.
Oh, my. Blue blood
flowing through the veins.
Definitely never catch me
in a pair of Levi's.
Only all my blood
runs blue.
Exactly.
So, what is epigenome?
Because you talked about
messaging for DNA.
So, what is epigenome
and epigenome communication?
Sure.
So, the gene is a code to make proteins. But why should a particular gene be on or off? It turns out that our genome
can have marks on it. There are other systems that can say, hey, you know what? I want this
gene to be turned off. And they mark the genome in a certain way so that genes can be
turned on or off. And so there are many different types of these marks, but there are signatures for
genes that are on versus off, and that is often found in the epigenome. And so hormones, for
example, can regulate that. And by the way, Aniket, when I was in college long ago, I took a computer science class where we learned about the role of the dip switches on the backs of the computers where you can change certain modes of operation.
And that became a very useful reference when people were talking about gene expression for about like five years until those computers weren't around anymore.
But when you say turning them on and off, I think of the back of the computer where you had these switches and you'd manipulate them.
But you had to know what you were doing.
Does this epigenome become affected by environmental aspects and influences such as your environment, pollutants and things?
Yeah, I think that there
is you know sort of growing interest in that um and um those types of studies
have been done sort of in cells right but you know then you have to take the next step of saying okay
let's expose lots of people to a pollutant and then look at the epigenome and the answer is... Or not. Yeah, it does.
Or not.
Or, yeah, right.
If you want to connect
an ethical study.
Yes, thank you.
And then see.
But these occur naturally, right?
Because there are flight attendants
who are exposed to smoke,
for example,
and other people who are not.
In the day.
In the day.
In the day.
Not anymore.
And so you can then look
and look at their genomes
and see if their epigenetic changes occurred.
And there's a lot of evidence that that has occurred.
Yeah.
Mm-mm.
Yeah, so that's the hormonal system in a nutshell, I guess.
So just when you mentioned the pituitary gland,
I'm reminded that some of the physical conditions that make people short
or extremely tall directly come out of failures of the pituitary gland, right? I heard the term,
maybe we don't say it anymore, pituitary giant. Is that still a term? Yeah, there's a term
gigantism that's used.
And that's when there's too much growth hormone when kids are growing.
And then they grow up to be very, very, very tall.
But you can also have extra growth hormone made after people start growing.
Right.
And then they don't get taller, but other parts of their bodies grow.
So they have jaws that are a little bit bigger.
Their hands become kind of wide.
Barry Bonds.
He was a different kind of bitch.
That's a different, that's a different, he was from another planet.
We'll save that for section three.
Yeah.
Go back to the sound signaling modes.
You know, you said about the computer switch on the back, Neil.
I mean, are there notes of neuroendocrine and autocrine modes for signaling, doctor?
Yeah.
So, what that refers to is neuroendocrine is simply like the hypothalamus and the pituitary make a hormone.
They go to, for example, the adrenal gland, tell it to make more cortisol.
Okay.
Right?
They go to, for example, the adrenal gland, tell it to make more cortisol.
Okay.
Right?
But autocrine is within a single sort of tissue system where a cell makes a signal.
Let's call it a growth factor, for example.
And it'll go next door to a cell.
So it doesn't have to enter the bloodstream and travel to some other place.
Entering the bloodstream and traveling is like the traditional definition of a hormone.
But autocrine is just, you know,
talking to your neighbor and nudging them to do something a little different.
So it's shopping local is what's happening.
Yeah.
We got to end this segment,
but when we come back,
doctor, I want to talk about all the ways
that the endocrine system can fail us right when it's working you
know nobody says anything right you're just a quote normal human being and you're a doctor
specializing in occasions where this that system fails and so on yeah make sure we
spend a whole segment on that this is star talk sports edition we'll be right back.
We're back.
StarTalk Sports Edition.
An entire episode on the endocrine system.
Your hormones long overdue for a topic of interest on this show.
Of course, I got Chuck and Gary.
And our special guest today is Dr. Aniket Siddhaiyeh,
who is an associate professor of medicine, Johns Hopkins University.
Excuse me, the Johns Hopkins University, I think they prefer.
Specializing in endocrinology, an expert in cystic fibrosis,
and also diabetes, I think.
Is that right?
We'll learn more about that in a minute.
But who better to keep us on this journey?
And so let me jump back in.
So here we have a system of chemistry, basically.
And Anika, I don't know if you know this, but some of my best friends are made of chemicals.
Okay? Don't tell anybody. Some of my best friends are made of chemicals. Okay?
Don't tell anybody.
Some of my best friends actually do chemicals. Do chemicals.
So, we spent the first segment describing the glory and the majesty of our endocrine system.
But I kept thinking about it from a systems engineering point of view, because when you launch something into space,
everything has to work and you want to reduce the number of nodes of failure.
And from your description,
it sounds like there are multiple handoffs,
chemical handoffs,
from one location to another to another
in order to regulate this body,
which sounds to me like
we have high susceptibility to failure.
So what can you tell us about what happens when our hormones go bad? Yeah. Yeah, you're right. There are different
points of failure and there are many, many diseases, many common diseases that are due to
disruptions to the endocrine system, probably the best known is diabetes.
Oh, good. Yep. Yep.
I mean, not good diabetes.
That's bad, but good.
You're going to talk about it. Yeah, you're going to understand it.
And diabetes simply means that there's a lot of sweet-tasting stuff
flowing through your system.
That's what diabetes mellitus means.
And that means your blood glucose is too high,
one of the sugars that we talked about.
And really, the reason that happens is because people can't make
enough insulin. And depending on what type of diabetes you have, the reason for that could
be different. But the bottom line is there's just not enough insulin being made for your body's
needs. When there's not enough insulin, there's not that signal that tells the glucose, hey,
go from the bloodstream into the muscle or into the fat, right?
Or very interestingly, insulin also tells the liver to stop making sugar.
So that's another way in which insulin acts.
But all of these things you can see, if there's not enough insulin, the blood glucose stays
high.
And in the same way, there are many other hormonal systems.
Another common one is the thyroid system.
We like the thyroid gland because you can actually feel it.
It sits right on top of your trachea.
And so it's a gland that you can actually feel,
just like the other glands you can feel, which is your testes.
So the thyroid, if the thyroid is damaged, you don't make enough thyroid hormone.
And thyroid hormone, I like to describe as,
it kind of tells every cell in the body how fast to run the furnace. So if you don't
make enough thyroid hormone, you feel cold, you feel sluggish, you can't think quite as fast,
you get constipated, your skin becomes super dry. And so that's an example of when you don't make
enough thyroid hormone. But you can also have the reverse. You can actually make too much of a
hormone. And when you make too much thyroid hormone, for example,
it's all the opposite.
People feel hot, they sweat, they can't sleep.
They actually feel tremulous or shaky even.
Their hearts might race.
And so that's an example of, you know,
when you have deficient or excess thyroid hormone.
We mentioned gigantism in the previous segment,
and that would be an example
of having too much
growth hormone. A real dangerous one is when you don't make enough cortisol because you need
cortisol. It's like a stress response. Like when you're stressed, you need to make cortisol. And
if you can't, then your blood pressure can't respond. Your immune system can't respond. And
you can even die if you don't have enough cortisol. Is there something called hypercortisolism?
Yeah, yeah, yeah.
That is in fact not enough cortisol.
Hypocortisolism.
So there's hypo and hyper?
There's hypo and hyper, yeah.
Hyper is too much. Hypo is not enough.
You got it, yeah. And when you have hyper,
it's a whole other set of problems.
And this is just a great example of
how many different systems one hormone can affect.
So if you take hypercortisolism,
people can get diabetes.
Their skin gets very fragile.
Right.
And they can bruise really easily.
They can get fractures because it makes the bones thin
and you can't absorb calcium properly from your gut
to help mineralize the bones.
So lots of different systems get affected by one hormone.
So on the subject of words,
on the subject of words, you know, we have the word
hyperbole, where you're going a little
too far. We should invent the word
hypobole, where you're not...
See, that just
sounds like you can't say hyperbole.
Hypobole?
Hypobole.
I say.
I say that.
Hypo-bly.
Hypo-bly.
Never see here, boy.
But hypo-bly would be like you're not exaggerating enough, right?
You're underselling what you could be selling.
I thought that's what English people do.
Yeah, that's all.
The understatement.
We getting blamed again?
A master of hypoboly.
I'm going to invent that word right now.
That boy's about as sharp as a bowling ball.
Always using hypoboly.
So, Gary, take us back to sports here.
That's the goal here.
Before you do, because I just want to talk about what you just said, Doc.
Yeah.
So, all these things you just pointed out,
a lot of times I read these articles
where it says that they're exacerbated by belly fat.
So what does that have to do with anything?
The fact that I'm carrying all this subcutaneous fat.
Yeah, yeah.
It turns out that fat is not some inert depot
for storage of fat, you know, like our fat tissue.
It is a very active organ almost.
And it makes inflammatory signals.
And those inflammatory signals can go around your body and make your pancreas not work as well,
make your muscle not take up glucose.
They can make the blood vessels, you blood vessels a little reactive and make you more
prone to cardiovascular disease. So the fat is secreting lots of signals that can be bad for you.
Such as what puts you at risk for that other kind of diabetes, correct, in later life?
That's right.
If you're overweight, as I understood it.
Yep. As you get more fat, your body becomes more resistant to insulin.
Now, you know, if your pancreas can still deal with that resistance, you don't get diabetes.
But, you know, obviously there's a lot of people whose bodies can't react and they get diabetes as a result.
Right, right.
Okay.
So, Gary, put us back on track here.
So, where are we taking this?
So, the body produces its own steroids.
Yes.
Okay.
But what happens if production starts
to go up too far or go down too low?
And if we wanted to introduce
exterior steroids into the system,
how do they interact?
How do they play with the endocrine system?
So too much natural, too low, and then the introduction of exterior.
Plus, we didn't hear officially yet what a steroid is.
Yeah.
If we can just give a minute on that, please.
Sure, sure.
So the steroid hormones are a class of hormones,
and basically their backbone is cholesterol.
So they all have cholesterol that is used to make these hormones.
So cortisol is a steroid hormone. And that is the stress hormone I just talked to you about. Testosterone is a
steroid hormone. That's what's really responsible for males being males. And estradiol, which is the
female sex steroid, is a steroid hormone. So it's a class of hormones.
So when people say steroids, they could mean different things.
But from, you know, we're talking about sports,
I'm thinking you're talking about androgenic steroids.
That is, right?
And that's the ones you're talking about.
And the reason that people obviously have a lot of interest in these is because androgens have two different effects that are linked.
They help males look like males, but they also have this anabolic effect on muscle.
And people's muscles get bigger.
And I think we all know what those folks look like.
So, you know, interestingly,
there are really rare, rare situations where somebody might make too much of a sex steroid.
Tell me about it.
Yeah.
But most of it, you know,
unless you are, you know,
a comedian on a talk show radio, you know, most of them are, they're taking those androgenic steroids from outside in one way or the other to help enhance performance.
So do women also make testosterone?
They do, but a very, very, very small amount.
And how do they make it?
So that's very interesting.
Estradiol, which is the female sex steroid, is actually made from testosterone.
Oh, okay.
Wow.
Yeah, I was about 12.
Oh, great. That's why when men get like really fat, they stop producing as much testosterone and they start growing boobs.
No, they're called moobs, man boobs.
Oh, that's right.
Oh, yeah.
So it turns out that you need an enzyme to convert that testosterone to estradiol.
And when you're more fat, then you have more of that enzyme.
And so you make more estradiol for that reason.
And so there's this balance between testosterone and estradiol that gets a little flipped. And once that happens,
men can get breast developed. Everybody kind of defaults to the anabolic steroids.
Yeah. But is there another way that you could get a boost, similar kind of boost in performance
from the endocrine system without using this anabolic steroid?
Instead of an external acceleration,
why not something that prompts your body to do it on its own
or prompts your body to fall out of balance
so that you get all muscle-like?
Wait, Gary.
So the doping rules,
they specifically say you can't put a chemical
from outside your body inside your body.
But if I can do something inside my body
that gives me all of the hormones,
of the steroids that I want
and would have added to me,
but I made it myself,
is that then legal?
There is a gray area because you, there's always a gray area.
Yeah, of course.
Kesa Samania, the female middle distance runner,
has a higher natural level of testosterone.
They're going ape over this.
They really are going nuts as to what to do or not to do.
Yeah.
And so, I mean, the other thing is, if you remember,
we did a show on horses and horsepower.
And then we were introduced to the fact that a horse's spleen can produce a rush of red blood
cells, highly oxygenated red blood cells that help an initial burst of speed.
In that racehorse moment, yeah.
And I'm just wondering, do we have similar facilities for ourselves to be able to do that?
And we're not quite thinking that this could be something to use. Can I sit in a lotus position
and increase my steroid level just by thinking it? All right. We have that power over body.
Well, you know, I think that one of the things that I think we've been talking about is that
these hormonal systems are acting in the background and we're not even aware that they're acting.
Right.
But there are, for example, like if you're stressed, you're not going to make that much testosterone.
So any amount of stress is going to reduce your testosterone to the extent that that testosterone is important for maintaining your muscle mass, for example,
then that's going to affect your performance, for example.
So, you know, you would be, I guess it would be an indirect way of making sure that you're
making the optimal amount of, in this case, testosterone, but that would be true for potentially
any other system.
that would be true for potentially any other system.
But in terms of sort of natural ways of boosting hormone production,
so, for example, in the testosterone system,
if, for example, you have reduced sexual activity,
you will then have slowly reduced production of testosterone. I guess that there's nothing that you could do to boost it that you'd have to have a control mechanism.
And I think that's what we're lacking.
So is there a natural way for me to boost testosterone but not let it be too high?
So you need a knob attached to your body where your body doesn't shut down the high level
that it's trained to do.
But the body already has the knob.
So the hypothalamic pituitary system is that knob.
It doesn't let you make too much or too little.
So now what about gaining muscle?
Because you always...
Anybody who gains muscle,
they're like the best way to increase your testosterone
is to build muscle because your body
says, I got to have more testosterone.
Is that real or is
that like something that these
companies do to get you to buy their
little muscle making stuff?
Yeah, the metabolic supplement company.
Not investigated or approved by
the FDA. Yes. I mean, you know,
everybody's looking for
this magic bullet to increase vitality, everybody's looking for this magic bullet
to increase vitality.
Let's call it that
for lack of a better word.
And with that,
there was this huge surge
in even high school kids
using anabolic steroids
in the late 90s and 2000s
to try and get bigger
for either sports
or just even how they looked.
But even prescriptions for testosterone have gone up from the late 90s.
It was like $18 million worth and now it's like $18 billion worth.
Oh my gosh.
This is big, big business.
Big business.
In my opinion, you should use testosterone when someone has a bonafide organic reason
for not making testosterone.
Like, for example,
you had a pituitary tumor
and it got taken out,
but now you can't make
the hormones that help you
make testosterone.
Okay.
I'm bombarded with commercials
that say,
at your age,
you have lower testosterone
here by this.
Low T.
Okay, wait,
so if that's correct,
then you are supplementing the testosterone that you once had in your older age, right?
Yeah, and this has been long known, this natural decline in testosterone that occurs in men at a relatively slow rate compared to women who go under menopause.
And then their fall in estradiol is really very dramatic in the first year after menopause.
But in men, it's this slow decline.
And this is like a question, right?
Like, this is just a natural thing that happens.
Maybe there's a reason that this natural thing happens. Well, death is natural too,
but that doesn't mean I have to embrace it.
Let's be clear about that.
Yeah, I'm not racing towards it.
Don't say, nature would have it that way and so should you.
No.
All right, so doctor, is it now,
and you've talked about an amazing bump
in the sale of testosterone as a prescription drug.
Is it not just performance enhancement or muscle growth,
but people are using it as an anti-aging supplement?
Yeah, and that's the major driver.
And now it's become a fashionable trend.
Let's put a pin in that until the third segment
where I want to get more into
what role these hormones are playing
on what it is to be male or female in the first place.
So, when StarTalk Sports Edition returns. We're back. StarTalk Sports Edition. I've got a professional endocrinologist in the house,
in the Zoom house, I guess we'll call it that. Dr. Aniket Siddhaiyeh telling us all about hormones and what we thought we knew and more stuff we didn't know we didn't know.
So let me introduce this segment, this third and final segment by asking.
You described categories of hormones that make us female, that make us male biologically. And now we are living in a world where trans
athletes are striving to be recognized in sports in a category, in a sex category different from
what they were assigned at birth. And so what does your community say and think about this? Because to the extent that I've
thought about it, not that I have any expertise, but I like to think of myself as rational and
thoughtful, that maybe we no longer contest athletes by sex, men against men, women against
women. You have categories of hormones.
Hormones.
How much female hormone do you have relative to male hormones?
And those go into categories.
They just compete in your hormone category.
And who cares whether you're male or female at that point?
So what... Yeah, I mean, that's a very...
Like a hormonal weight class.
Yes, basically.
Because I used to wrestle, we had 10 freaking weight classes, right?
Because you know
you can't pit people
vastly different weights
against each other
and you still want to have
an interesting contest.
Right?
So I can look at
the 118-pound wrestlers
and it'll be
just as interesting
as the 250-pound wrestlers
because they're matched.
And why do we,
any of us watch sports?
It's for the matchup.
It's for the contest. It's for the matchup. It's for the contest.
It's for the suspense
of not knowing
who is going to win.
The most boring Super Bowl ever
is a blowout.
Okay?
The advertisers hate it
when the team is winning,
you know,
35 to 6.
All right?
Because no one watches the ads
at that point.
So...
Unless it's the Eagles.
Okay.
Chuck can't shake the Eagles.
Damn. Mr. Philadelphia
native. So,
Dr. Sid Haye, what, tell me
what's your reaction to what I
said and how do you guys feel in general?
Yeah, I mean, I think, so at a very
basic level, we know that testosterone
can increase muscle mass.
Of anybody. Of anybody.
Of anybody.
That's right.
And power, the power output of that muscle.
So I think that that's something that society has to contend with.
I think your suggestion is very interesting and creative.
Like, could we have, just like you have age categories or weight categories.
Yeah.
Could you have a testosterone level category?
And I think that my initial reaction was like, wow, that'd be a great solution.
But then the problem is that the normal range of testosterone is extremely wide.
And it goes from like 300 to like 1,200 in the units that we typically use to measure.
And one person could be at 900 and
that's normal for them. And another person could be at 400 and that's normal for them.
And so I don't think that we have the measurements sophisticated enough to kind of do that type of
categorization because- Wait, wait, wait. But what you can, well, they take blood samples and
urine samples every day during contests.
So it's not like we don't have access to the chemistry of your body in very important athletic events.
What I would ask is, if your natural testosterone is 800 and mine is 400, can I beat you in an event?
If we are otherwise equal, but our testosterone levels are different,
are we really otherwise equal?
Because, you know, what is professional sports?
If not, I will do everything I can to gain an advantage over my competitors.
I will train at high altitude.
I will do breathing exercises.
I will take all my vitamins.
I will eat three squares.
I will get a full night's sleep.
I'll carbo load if I have to.
All of these are steps I'm taking to give me an advantage beyond my pure genetics.
But if you're relating this just to a genderized aspect,
then what I think the doctor is saying is inside of that normal parameter,
you're going to find that men are pretty much
going to be much larger than women. And even if you have a woman who has superior testosterone
than her counterparts, she's probably still going to fall at the very low end of a man.
Physically, in terms of the physicality.
Wait, wait, wait, wait. I thought we were talking about hormones here. Because yes,
there are people who are bigger than other people, right? And so big people play football,
all right? I'm not saying, oh my gosh, that's not fair. You had a genetic advantage because
you're 300 pounds and I'm 150 pounds. No, they play football and I pay to watch them and they
entertain me, right? So,
we shouldn't walk into this saying, oh my gosh, some people have genetics that make them better
at this. You know, Michael Phelps, does he have floppier feet and big feet that give him extra
propeller blades when he's swimming? Okay. Are we saying disqualify him because of this? No.
All right. Rather than just narrowly pinpoint testosterone,
doctor, are there other hormones that we could sort of bundle in together
to then use as categorization
through as well as weight and physicality?
Wait, wait, wait, wait, wait.
Gary, he didn't answer my question yet.
Could chuck butt in.
Wait, so here it is.
We'll get to what you said, Gary,
because that's important.
I'm simply asking, in a race of any kind, in a contest of any kind that involves strength, agility, the things that the testosterone, well, not agility, but strength, certainly, the testosterone and speed the testosterone may give you.
If you checked everyone's testosterone level in a race,
would it be ordered by how much testosterone they had, statistically?
That's a good question.
And I think the answer to that is no.
If 800 is normal for you and 400 is normal for me,
can I beat you at an event?
Yes.
Because if I, well, okay.
Right.
So?
There's the deal.
So then? So no. So. So. There's the deal. Step so, then.
So, no.
So, what you're saying makes perfect sense.
If it's a hormonal weight class and you're able to categorize people by their testosterone number, yeah.
Then you just test everybody and that's your weight class.
That's a weight class.
Right.
Now, it's like, all right, how hard did I train?
It's like, what is my strategy?
Right, right. Like, all right, how hard did I train? It's like, what is my strategy? It's like all these other factors
because we are equally matched
when it comes to our hormonal state.
You're leveling the pain.
I just want to indirect one thing that,
you know, the testosterone,
like I said, 400 could be normal for me.
800 could be normal for Neil, right?
And then we're both normal.
So that's where
I think your difficulty would be coming in coming of class. So, you know, how would you make a
category? 200 to 400 is one category. No, it'll take some effort. Yes. Somebody's got to do some
research on this. Why? I mean, why not? If that's the direction we're going. Yeah, and then you'll find people actually depressing their testosterone numbers
so that they could be the superior athlete
in the lower weight class.
In the lower weight class.
So are there other hormones, doctor,
that we could, as I said,
bundle into the testosterone group
to then even better equate the playing field
and level it out.
And by the way, what is the pipeline for that?
It's kids in school wanting to be athletes, right?
And how does your profession interact with the entire pipeline
of people who need hormone therapy or endocrine therapy?
Yeah, yeah.
Yeah, I guess there's sort of two questions there.
One is, I think that because the purpose of the hormone system
is to maintain balance, right?
I think that's where this difficulty in finding this hormonal weight class will be.
Because what is going to be balanced in me is not exactly balanced in you.
So I think that people are always trying to develop prediction tools
and putting in more pieces into that prediction tools.
But I think it would be a big stretch to come up with some kind of
multi-hormonal categorization of people to level the playing field. In terms of where our field
interacts, I think probably the biggest place is in persons who have diabetes.
You mentioned that as like the number one endocrine failure of the body. Yeah.
Yeah. I mean, certainly in endocrinologists in practice, we take care of patients with diabetes,
I mean, certainly in endocrinologists in practice, we take care of patients with diabetes.
It's the bulk of our practice.
But in terms of kids who are participating in sports, those people who also have diabetes,
it's a big challenge for them.
And, you know, really watching them overcome those hurdles is really, it's really kind of inspiring, to be very honest, that despite having this chronic illness, which requires
a lot of work on their part to help
manage themselves, they still take care of their sports. And we try and help do it
so that they can do it in a safe way. And talking about diabetes, diabetes is a deficiency of
insulin. And so we treat it by giving back insulin to the patient. The problem is that
our ways of giving back insulin don't have the advantages that the body has. Remember, I told you about that link between
how glucose stimulates insulin. Insulin goes up, and then once glucose comes down, insulin comes
down. But when we ask a patient to take an injection of insulin, we can't take it back.
So even when the glucose comes down, that insulin is still there. So an athlete, so normally when people
start working out, their glucose levels fall just a little bit and their insulin levels fall as well,
normally speaking. I hadn't fully appreciated that because as my sugar levels go up and down,
my body goes in and regulates it. But if I don't have the ability to regulate it and I put in the insulin, that's a fixed amount of insulin.
And so that's why the
diabetic people always
have to manage their sugar intake
in the way none of the rest of us do.
That's interesting.
It's an amazing amount of work that patients with diabetes do.
Is there a technological solution to this?
Yeah, I'm glad you brought it up.
There's both technological and biological
solutions.
You know, in our field, we're just super excited about both, potentially.
So we have continuous glucose monitors.
So these are devices that people wear on their body,
and they have little catheters that dangle just beneath the skin,
and they're sampling that fluid every five minutes and measuring the glucose. It turns out that fluid's glucose mirrors the blood's glucose pretty closely.
And the device companies have come up with now
this glucose information can be transmitted
to an insulin pump.
Right.
And the insulin pump is delivering insulin
in sort of little bits at a time.
And now these insulin pumps can adjust
the amount of insulin that they deliver
based on the glucose information.
Just as your body would have done, yeah.
It's like a pacemaker for insulin.
Yeah, very good, Chuck.
You micro-dose, Rod, because I used to have a teammate of mine
back in the day, Gary Mabbitt, who was an exceptional footballer
and went to the very, very top of the game in English football.
He would have to go away, pop a needle in his hip,
jump all this insulin into his body. But now you're saying this can be kind of micro-dosed
and regulated so you've not got too much in your system after your glucose levels have dropped.
That's right. So now that these devices are really just coming on the market in a big way
in the last two, three years, people are going to learn to use them more effectively.
And there are strategies that people who study exercise and type 1 diabetes, that we tell
patients so that they can manage their glucose better.
And that's important, both for safety.
You obviously don't want to have a low glucose in the middle of a workout or middle of a
game, but also performance.
You know, when people's glucoses are riding high for a long period of time, guess what?
That glucose in the bloodstream is not doing their muscle any benefit.
So now we're really optimistic.
Because it's in their bloodstream.
That's right.
And not in their muscle to help them.
So these devices, I think, are going to make it easier for, you know, people and kids to participate in sports in a more safe way.
Then, of course, there's these biological solutions.
It was in the news recently about a stem cell-based treatment, which is basically a little pancreas in a capsule, let's call it that, where people get injected with these cells.
These cells can respond to glucose in the bloodstream the way the body would have.
and these cells can respond to glucose in the bloodstream the way the body would have.
And of course, maybe that is going to take a few years
to come to fruition for a large scale,
but these trials are ongoing in humans right now.
So-
This is all very hopeful.
And you're like, we all agreed you were young.
And so you're going to be in this
and you're going to watch this field burgeon in so many ways.
This is very fascinating.
Before we close, I want to ask, I guess, what would be an ethical question, right?
We're so busy defining what is normal in this world.
You know, are you the normal height, the normal weight?
Are your organs functioning the way the average organ should?
And then you get some variation in that.
And the urge is to say that's abnormal.
There's an entire TV show on cable that follows a family with dwarfism.
I think that's what it's called.
But they're called little people, right?
With the shortened long bones.
Colloquially, they're called little people, right? With the shortened long bones, colloquially,
little people. And everything in their life is made little to accommodate their lives. And they're
getting along just fine. So who are you as an endocrinologist to say that they are abnormal?
I think that's a good question. Yeah. Anytime, you know, a lot of pediatric endocrinologists obviously are often asked to see people who have, we say, short stature is the way we say it. And,
you know, normal and abnormal are usually defined based on some population-based data.
And to be homosexual was considered abnormal in the psychiatric journals until 1987, last I remembered
reading about this. And so, it's clearly a cultural force that needs to operate on top of this,
on top of whatever statistics you're finding in the population.
Yeah. And I think the better way to think about all of this always is this
healthy or unhealthy? Is this stature that is lower than
the population norms, is it healthy or unhealthy? And for example, the story that you just described,
it is not unhealthy, evidently. It doesn't have any negative health consequences. We as doctors,
we want to make sure that, okay, does these people who maybe have short stature, are they at
increased risk of fracture 20,
30 years down the road? Or are they increased risk of heart disease 20, 30 years down the road?
Or maybe not. Maybe they're actually protected. So we always would then want to take this,
what we're seeing and seeing, is there something unhealthier or maybe some advantage to that?
And I think you're right. I think we have to be very careful about the labels we put on people.
And I think our field, as all fields in medicine, are becoming more sensitive to that.
Okay.
All right.
So there's some hope.
But this is in the broader subject of inclusion, really, is what category that would come under.
All right.
We got to land that plane.
All right.
This has been StarTalk Sports Edition, all about endocrinology.
Neil deGrasse Tyson here,
your personal astrophysicist.