Stuff You Should Know - Is the Free Radical Theory of Aging Wrong?
Episode Date: March 2, 2021In the 1990s we thought we’d identified the root cause of aging: nasty molecules called free radicals that wreaked havoc on our cells. Even better, we’d figured out how to counteract them with loa...ds of antioxidants. Then science started raising questions. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.
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Hey, I'm Lance Bass, host of the new iHeart podcast Frosted Tips with Lance Bass.
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I'm Munga Chauticular and it turns out astrology is way more widespread than any of us want to
believe. You can find in Major League Baseball, International Banks, K-pop groups, even the White
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Welcome to Stuff You Should Know, a production of iHeart Radio.
Hey and welcome to the podcast. I'm Josh and there's Chuck and there's Jerry and we're all
looking vibrant and healthy and just so alive and sexy and that makes the stuff you should know.
Jerry's coat is shiny. It is. She's got that high pro glow.
High pro glow. Do you remember that? I do. We give our dogs this salmon juice that comes in a
squirt bottle. Whoa. It's like salmon skin oil and that makes their coat shiny and it
smells like salmon skin, which I love. That's cool. Yumi straight up cooks salmon with the skin on
for Momo. That's what she has cooked food for dinners. Yeah. I mean, I love salmon skin. It's
the best thing ever. It's so good. I just love raw salmon, Chuck. I like that too. I like it's
smoke too. Sure. Sure. What else? Injectable salmon? Stick it in my neck. You end up with
kind of like a requiem for a dream thing going on. That's right, but this all dovetails into
antioxidants, I think. It does because I think if you eat a lot of raw salmon, especially good
stuff, nothing grown in a toxic sewage dump, you're going to live a really, really long time
and we've known it for a very long time that if you eat healthy food, you're probably going to age
a lot better or a lot more. You're going to stay a lot healthier as you age than say you would if
you just ate junk for the whole time. It seems like a no-brainer, but along the way, a lot of
people have stopped to ask exactly why that might be and we should say shout out to our book, which
has an entire chapter, chapter eight on aging. It's called aging colon, do we got it? It's a
pretty good one if I do say so. Yeah, I think the first line of that chapter says avoid sewer
salmon. That's precisely right. I mean, that's just some of the best advice anyone could ever give
anybody. That's a t-shirt. A lot of people, like I was saying, have stopped to ask why would food
help you? Obviously, we need food for fuel, but it turns out that especially in the 90s,
a lot of food hit the scene. Well, the food was already there, but they were promoted a different
way thanks to some recent findings that decided that food that are high in antioxidants would
help you age a lot better, possibly prolong your life and prevent certain kinds of age-related
diseases, everything from cancer to neurodegenerative diseases like Alzheimer's, just from eating the
foods you ate and it all seemed to have something to do with those antioxidants and that concept
took off like a rocket and it's still around today actually. Yeah, and this is when listeners are
saying, oh God, are Josh and Chuck going to tell us now that science says antioxidants aren't good
too. Right. Well, let's just hang on to that. You'll find out by the end of the episode. Yeah,
that's the... We want people to stick around. That's the big reveal. Let's give them some MacGuffin's,
Chuck. Yeah, well, the point of the whole intro here, though, is that it was a big marketing
blitz, everything from blueberries to kale. I mean, good Lord, we had kale ram down our throat
like figuratively and literally for the past decade plus. Vitamins, multivitamins, vitamin E,
vitamin C, beta carotene, just all of these superfoods, green tea, of course, which we talked about.
Yeah. And we're not saying these things aren't good for you. No. These are all great, great things
to eat, but they were being touted as being high in antioxidants and it will help you age
and it will help you combat something that everyone just heard the words free radicals and
consumers said, well, I don't like the sound of those. Yeah, exactly. So let's kill them,
even though we don't understand them. Right. Someone literally shoved kale down your throat once?
Yeah. Have you ever gone to that restaurant? No. Kale shove? Kale me crazy. That explains a lot.
Yeah. I mean, kale's fine, but kale chips don't eat more than like 10 of them or you'll get sick
to your stomach. Yeah, I know what you mean. So you hit upon this whole point. It's not so much
that antioxidants are good for you. It's that free radicals are bad for you. That was the premise
of this whole thing in the 90s. And this idea of free radicals is rooted in some really deep
science and had a lot of scientific backing for a really long time. And I guess to get a little
bit of this out there, science way overshot itself. There was a really good sensible hypothesis
and the scientific community ran with it and then they started doing studies. And it wasn't
entirely just the scientific community. It was largely those same marketers who were making
money off these superfoods that they could slap a label on there now. It just got overhyped before
the data was fully in. And for my money though, once the data started coming in,
it got even more interesting. But let's just go back to the beginning of all this because,
like I was saying, free radicals form the basis for this whole thing. And there's this whole idea
that it's called the free radical theory of aging. And it turns out that the guy who came up with
this was an MD. But he became interested in all of this when he was a biochemist working for
shell oil, developing things like pesticide strips, the no pest strip, very famous kind of
pesticide strip of the United States, was developed by this guy named Dr. Denim Harmon back in the
50s. And also in the 50s, he came up with that free radical theory of aging.
Yeah. So he was working at Shell and one of the things that he was doing at the time was working
on chemical additives that would, you know, they found out that sulfur and phosphorus
were getting spoiled. These compounds were breaking down in the oil and they were really
degrading over time because of free radical chain reactions. And they learned back then,
and this is pretty amazing for the mid-1950s, that there was something called free radicals,
these reactive particles that would take electrons from other atoms. And then those atoms would then
say, well, wait a minute, I'm out of whack now. I want to steal some electrons to get back in balance
again. So it started this chain reaction where each neighbor was getting their electrons stolen.
And in the case of oil, this sulfur and phosphorus would just continue to break down until
it was just gross. It was basically worthless. So he's studying this stuff. He reads an article
in the ladies home journal called tomorrow you may be younger. And he was like, wait a minute.
And he was like, I'm studying these free radicals. It's breaking down oil. We have cells in our body.
We know that the atomic bomb and x-rays and all that kind of radiation really increases the free
radicals in your body. And you should see somebody after an atomic bomb. And he put two and two
together. And he was like, this is it. This is why we're aging. It's all because these free radicals.
Yeah, that the damage that they do builds up over time. And once you reach a certain point,
that's your expiration date. But then along the way, your system start breaking down before
the first catastrophic one fails completely, say like your heart giving out. And that is aging
everything from loose saggy skin to a buildup of plaque in your arteries or your hardening of
your arteries. That all of this is an accumulation of the damage done by these free radicals,
which are again, just simply a particle that has an unpaired electron. So it can take someone
else's electron or it can donate that electron. But either way, it makes things that are normally
stable like the lining of cells that give cells their structure unstable and bad things can happen
to that. So Dr. Harmon basically figured out that he had stumbled upon the reason that we age and
die. And when you do something like that, you can take steps to mitigate it. And this kicked off
at the very beginning, the free radical theory of aging that took a few decades for people to
pick up on it though. It wasn't like an immediate thing that took off, huh? Yeah, he was like,
I'm going to get so rich on this. Right. Eventually, he kept checking his watch.
So maybe we should go do a little biology class primer for everyone to make it a little more
understandable. It's really kind of simple stuff. But if you remember back in biology class,
you probably remember learning about the Krebs cycle, capital K, R, E, B, S, and cellular,
cellular, oh geez, here we go, cellular respiration. And the whole thing with respiration in the cells
is the whole point is to turn glucose into energy. And that's pretty easy. We all understand that.
We turn that sugar into working energy for the body. It's our metabolism at work.
And this Krebs cycle is that metabolic process of doing so, of turning those
glucose molecules into something called adenosine triphosphate, ATP, which is like the fuel for
the cells. Right. The thing is, is during this Krebs cycle, one of the byproducts or one of the
products of it, I guess, is free radicals, which is put a pin in that because that's important.
Your body, when it undertakes its most important process, which is cellular respiration,
it produces free radicals. Right. The problem is, while some of these free radicals are put to use,
others just kind of get away. They escape and they start wandering around the body. And when they
get away and they're outside of the context that they're, I guess, meant to be used for,
that's when they start to do some real damage. Yeah. That's when they go to other molecules
like oxygen and say, hey, let me in oxygen. And oxygen is like, sure. I'm down to party.
And all of a sudden you have an oxygen molecule that has an extra electron that's unpaired.
It's called the superoxide. That sounds like it would be awesome. Yeah. Like superoxide sounds
like a positive word, but it's not. It's a free radical. It would get your clothes just so, so white.
That's right. And there are other superoxides. Hydrogen peroxide is one. And these are all
collectively known as reactive oxygen species because they're reacting. They're destabilized.
And like we said before, they want to be whole again and they want to be stable,
so they just start robbing electrons from their neighbor. And again, you have the same
chain reaction and that's basically free radicals that work in the body.
Right. And so like just to kind of give a human face to this whole thing, if you have a reactive
oxygen species, they respond indiscriminately to whatever cell they come up against. It doesn't
matter to them. There's not one particular type that they like to take electrons from or donate
electrons to. They'll destabilize whatever. And so if they come across something like a fatty acid
molecule that helps create structure for a cell, over time, if it sets off a chain reaction, it
can weaken that cell. And when the cell wall is weak, the permeability is affected, which means
that all sorts of functions within the cell can be impacted. And the cell can not only no longer
function and maybe decay and die, but it might also produce some bad jams before it dies and
screw things up. So the proteins that it's meant to do are still kind of trying to carry out their
function, but they're not doing it correctly. And so maybe they misfold and then you've got a whole
other set of problems on your hands. It's not good when a free radical, especially a reactive
oxygen species, gets loose. The problem is, is they get loose like constantly. There's a constant
barrage of free radicals going through your body. And Chuck, I have to say after researching this,
during researching this, I now can feel them. I can hear them reacting throughout my body. And
I didn't sleep at all last night. And I probably will never sleep again.
All right. Well, let's, I think we should take a break. I'm going to calm you down a little bit.
That was a nice primer. And I need to plug in my laptop. So it's a perfect time to take a pause.
Hey, I'm Lance Bass, host of the new iHeart podcast Frosted Tips with Lance Bass. The hardest
thing can be knowing who to turn to when questions arise or times get tough, or you're at the end
of the road. Okay, I see what you're doing. Do you ever think to yourself, what advice would Lance
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you listen to podcasts. I'm Mangesh Atikular and to be honest, I don't believe in astrology,
but from the moment I was born, it's been a part of my life in India. It's like smoking. You might
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Apple Podcast, or wherever you get your podcasts. All right, so we're back and Chuck,
I am ashamed that we did not give a huge shout out to Dave Ruse for helping us out with this one.
Boy, this is a good one. It's a fine example of the Ruse work because, I mean, he did a great job.
You made it so I could understand it. There was only one part that I needed to go to a kid's
science website. And it was for the Krebs cycle. And I didn't learn anything that I didn't already
know from that. Dave, did you remember the Krebs cycle from elementary school and high school?
Yeah, I didn't learn much about it, but I'm always reminded of the adventures of Pete and Pete,
because there was a company that had Kreb in the name. And it always, for some reason,
I always associate the Krebs cycle with Pete and Pete. And I guess it would not be elementary
school though. Probably high school. No, I don't know. I could see it in late elementary. Yeah,
middle. Let's go with middle. I didn't go to middle school though. You skipped right over,
boy genius. No, we just didn't have it then. It was one through seven, eight through 12 until...
Oh yeah, you went to that experimental school. Yeah, what experimental? They introduced middle
school kind of in the middle of my high school. Yeah, I have to say though, when you put together
all of your anecdotes from school, it sounds a lot like an experimental school that you went to.
They just didn't tell you that that's what it was. I think I had said this before. The result of
that was my class was the youngest class in the school in the eighth, ninth, and tenth grade.
There was nobody below us because they kept peeling off grades to go to the middle school
right behind us. Oh, that's interesting. Wow. So they really carved out the middle there, huh?
Literally, they carved out middle school. And finally, by the time I was a junior,
there was a sophomore class behind me and we beat them up so hard. Yeah,
I'll bet because you were all really just a class of super warrior sleeper assassins.
Yeah, super bullies. We just couldn't wait to beat up kids younger than us.
Not true. That's a very serious thing, by the way, of course. I've never beat anybody up.
You're talking like a guy who grew up in the 80s, not a person of the 2020s.
That's right. Oh, antioxidants. This is where antioxidants come in to play, the wonder thing.
Yeah, because it would make sense that if your body's producing billions and billions of free
radicals every second that are getting loose and wreaking havoc, it would have some way to alleviate
this. And as you just said, antioxidants. Yeah, like the body has these, the body produces these
on their own. You don't have to eat, I mean, blueberries are great. You should eat blueberries
and kale, but you don't have to eat that stuff to get them. They just supply you with extra.
We produce two main ones, uric acid and glutathione. And they don't actually wipe out free radicals,
but they neutralize free radicals because earlier you said you can actually give an
electron and that's what these antioxidants do is they walk up and they're like, hey, hey, man,
chill out. You don't need to go stealing electrons. Have one of mine.
It's like a hippie putting a daisy in the barrel of a rifle held by a national guard.
Exactly what it is. You know, totally. So that would be oxidative. The other thing,
taking an unpaired electron, that's reductive. So the whole process, that whole concept of
a free radical being able to do that is called redox, reductive oxidative. Just, you know,
if you want to score some points at your next biochem party, throw redox out there.
By the way, that ref you made was very ironic now that I think about it.
Which one?
The hippie one, because the hippie would not want to neutralize a free radical.
They are free radicals.
Oh man.
Mind blown?
It just melted my brain. I'm like that. I feel like the guy on the poster that says
stoned again. You know what I mean? It just melted under the table.
So, like I said, vitamins, good super foods, all these things can really help
out our own antioxidant production in our body and help protect, you know,
all these proteins and lipids and DNA and RNA, basically putting those daisies and all those
rifles as fast as they can.
Right, exactly. So it is a good thing. It is beneficial when you eat those blueberries
or ingest that pure cocoa, however you ingest it.
Like it does have that effect because you're introducing these antioxidants to your body
and there are health benefits to it. The thing is, is you can eat blueberries
till you yourself are blue, like the poor girl from Willy Wonka.
We just watched that, yeah.
Which one? The new one or the old one?
No, like a few days ago, we introduced my daughter to the Jean Wilde version.
And I got to say, he's great, but the movie's not very good.
Oh, really? I don't know, man. I'm going to take heat for this,
but it's kind of a garbage movie except for Jean Wilde.
I don't. Wow. Yeah.
When was the last time you saw it?
Like within the last year, two years.
All right. Well, you know, you might like it. I'm not yucking your gum.
I just, I didn't, I thought it did not age well.
I appreciate you not yucking my gum. Thank you.
I have to say, I've actually somewhat come around on the remake.
The first time I saw it, I broke the TV. I thought I was so disappointed with it,
but it's, it actually has somehow gotten slightly better.
I'm not sure if it changed somehow or I did. I'm assuming it changed.
I'll have to check it out.
Yeah, just don't hold me to it if you don't like it,
because I will not be at all surprised.
Okay.
But anyway, you can eat blueberries till you become
Bianca Blueberry, I think was her name.
Violet, I think.
Yeah, one of those two.
And you're probably not going to neutralize all of those free radicals in your body.
And so when an imbalance occurs between the number of free radicals floating around causing
havoc and the number of antioxidants coming in and neutralizing them,
you have what's called oxidative stress.
And again, this is what Dr. Harmon hypothesized was the basis for aging,
that over time, all this oxidative stress is no longer able to be repaired.
There's just too many, too much damage to your systems over time and then slowly,
but surely the clock starts to wind down and you fall over in the middle of the grocery store,
ironically, buying blueberries.
Yeah, so Harmon publishes a paper in 1956 called Aging, a theory based on free radical and
radiation chemistry, and this is where he lays it all out there and this idea that he hit upon.
And he said, you know what we got to do?
We got to ingest more of these antioxidants.
He said, I've done some studies on some mice.
He said they got a little moderate dose of antioxidants and they live longer,
so that proves everything.
And it didn't, it was 1956.
It wasn't like, I think you mentioned earlier, it didn't make the biggest splash at first.
No.
It actually took weirdly, it kind of took decades, or not weirdly, I guess it sort of makes sense
when the electron microscope or the electron scanner was introduced in the 80s.
They could actually see this stuff happening and they said, wait a minute,
these free radicals are stealing electrons.
They're bad and these antioxidants are sticking daisies in their rifles and that's good.
And so it got a little more traction and then in the 90s, they did a very big study that said,
hey, if you're eating, if you're not eating a bunch of fruits and vegetables and you're not
getting those vitamin C and E, you have a higher risk of getting cancer, memory loss,
bone breakage, sagging skin, like just aging in all the wrong ways.
Exactly.
And so the implication was, well then take as much vitamin C and vitamin E as you can possibly
pack into your body.
See American way.
And as a matter of fact, Dr. Harmon, who seems to have been a pretty good guy from all accounts
that I came across, he took a lot of vitamin C and E every day.
I mean, hundreds of times the recommended daily allowance,
which in and of itself is kind of an issue worth discussing in its own thing.
But he also jogged two miles a day, which as we'll see is very important.
And he lived at age 98.
And apparently he said at some point, it's important that you accept that you're going to die.
We're all going to die, but if you work at it a little bit, you might just make it to 100.
And he came awfully close.
So a lot of people made a lot of, hey, about the fact that he took a lot of vitamin C and E
every day and he still, he almost made it to 100.
And he was very much alive.
I mean, this was, he died in 2014.
So when this really finally hit in the 90s and everybody was like, this is it.
This is absolutely, we have aging figured out and we now know what to do with it or do about it.
He was around to be kind of fetid.
And he was, I believe, nominated for the Nobel Prize six times and never won.
But just being nominated once, I mean, I would love that.
I'm not saying that anybody should go out and do that necessarily.
But if you did, I would just think it was great six times.
I can't even imagine.
Well, I think after, if they ever create a Nobel Prize for podcasting,
we'll get it after Roman Mars and after Karen and Georgia and after Ira Glass and after...
Terry Gross.
Terry Gross, of course.
And wait, wait, don't tell me.
All of NPR will get theirs.
Then Georgia and Karen, then Roman Mars, then Mark Marin, then Jesse Thorne, then us.
I could see stuff they don't want you to know slipping in there ahead of us.
Oh, geez, our own colleagues.
Yeah, I'll cut them.
We've got a long line ahead of us, Chuck.
Let's just keep doing our thing and see what happens, okay?
Oh, that's right.
So in the 90s, it was such a big deal.
In the early 90s, the National Institute on Aging and the USDA got together and they said,
hey, you know what people love is USA Today style food rating scale graphics.
So let's put one of those together.
We'll call it the oxygen radical absorbance capacity.
No one's going to know what the OREC is.
At least they stopped short of calling it Oracle.
I give them credit for that.
Yeah, that's true.
They didn't go look for an L and an E, like Life Enabler or something.
Exactly, yeah.
And then they put this out and it was basically kind of everything we saw at a marketing.
It was the blueberries and the kale and the cocoa and all that stuff.
And like we said, marketing, they love that stuff because that means it can sell things
to people, packaged foods as healthy.
Yeah, and this thing actually just said, here's how great cocoa is.
But as great cocoa is, red wine, resveratrol is even better.
And so it was very helpful, especially at the time because people were into health food for
years before that.
The 80s was a huge, huge boon for health food.
And this seems like just the predictable legacy of that.
Now we've got even greater science and we can tell you what foods are even better at prolonging
your life than just your stupid brand muffin that helps you poop.
Go back to the 80s, you caveman lawyer.
This is like real science where we're saying this food is a superfood.
And here's how much of a superfood it is.
That's what the OREC did.
Yeah, but at some point, I think someone stopped and said, well, listen, we need to think about
this a little bit more.
And that's what I love about science.
Something that seemed really settled wasn't good enough for somebody at some point.
And they said, let's start poking around this again because we really still don't understand
it fully because if your body is producing free radicals, the body doesn't usually just
produce something that is so damaging that it's literally killing its cells.
So let's kind of poke around and see what the deal is with these free radicals.
And yeah, I guess the logical answer is, well, God decreed it that way.
So this is why we...
That's the logical answer?
Sure, you just run out of something.
Like you just stop at some point.
But like you said, some people said, no, no, no, there's got to be some other thing going on here.
And it turns out it's astounding how close humans can come to a mark and then just completely
misinterpret it.
You know what I'm saying?
Yeah.
And that seems like something that happened here.
Not completely misinterpreted because there's plenty of stuff that Dr. Harmon
supposed or that was the basis of his supposition that's still true. But I mean, I guess I haven't
quite put my finger on what's riveting about this, but it's still to this day.
Like I've known about this for years and it's still this day.
I just find it so interesting.
But the upshot was when people started looking into free radicals, so the antioxidants neutralizing
free radicals, that's pretty set. Like there's not a lot of question about that,
but just put a pin in that for later.
But free radicals themselves were portrayed as this, like that's it.
That's what's killing you.
These are the villains in all of our lives.
They're the reason for aging.
They're the reason for disease.
They're the reasons you will die are free radicals.
And somebody somewhere along the way said, well, let me take another look at them.
And they found, oh, wait a minute, these are actually super useful in a lot of different ways.
And what the change in paradigm that came from all of this is that free radicals,
depending on the context, where they are, the time that they exist,
like their lifespan, a bunch of different factors, they're either very destructive
or the body can't exist or move forward without them.
Yeah. And a lot of these benefits, I mean, they're all kinds of benefits,
but a lot of them are based around the immune system, like hydrogen peroxide.
It's a free radical and some immune cells need a little help from hydrogen peroxide to help
destroy these pathogens coming to our body. Some of the other, I think, well, hydrogen peroxide,
again, it can also signal molecules that draw immune cells to the side of an injury.
So we're talking like, if you're a smoker or something, it can be,
it can actually help attract immune cells to help stave off cell damage because of that smoking.
It's a big, it can be a signaler.
Right. Hydrogen peroxides also, again, it's a free radical. That's actually why they say,
they no longer recommend using it to dibride wounds or clean a wound or swish it around in
your mouth. It actually, it's a free radical that will damage whatever cells it comes in contact
with. You don't want to use hydrogen peroxide, but the thyroid gland produces it. It's part of
producing thyroid hormone. Like it needs, it's part of that process, just like it's part of the
Krebs cycle to produce energy. I saw another one. I didn't see the name in the study, but
there was a free radical that was linked to stronger contractions of cells in the cardiac
tissue. So it gave you a stronger heartbeat. They figured out that when they removed this,
the heart beat still, but it wasn't less, it wasn't as forceful or strong a contraction.
There's just a bunch of different things that different free radicals do in the body. Like
they clearly have a defined role depending on the context.
Yeah. And the other thing, we'll take a break here in a sec, but the other thing we should
mention too is the exercise paradox, which is, you know, we know exercise is really good for you,
but we also learned that exercise really increases your free radical levels. So that was just another
sort of notch or chink in the armor, I guess, where they were like, well, wait a minute,
if you're doing something really good for your body is producing these extra free radicals,
they got to be good for something. So that's why, you know, people looked into it and learned
all of these benefits. So I think we'll take a break now and we will come back with some pretty
interesting evidence on why they might have had it all backwards.
Hey, I'm Lance Bass, host of the new iHeart podcast Frosted Tips with Lance Bass.
The hardest thing can be knowing who to turn to when questions arise or times get tough,
or you're at the end of the road. Okay, I see what you're doing. Do you ever think to yourself,
what advice would Lance Bass and my favorite boy bands give me in this situation? If you do,
you've come to the right place because I'm here to help. This, I promise you. Oh God.
Seriously, I swear. And you won't have to send an SOS because I'll be there for you. Oh man.
And so my husband, Michael, um, hey, that's me. Yep, we know that Michael and a different hot,
sexy teen crush boy band are each week to guide you through life step by step. Not another one.
Kids, relationships, life in general can get messy. You may be thinking,
this is the story of my life. Just stop now. If so, tell everybody, everybody about my new
podcast and make sure to listen. So we'll never ever have to say bye, bye, bye. Listen to Frosted
Tips with Lance Bass on the iHeart radio app, Apple podcast or wherever you listen to podcasts.
I'm Mangesh Atikular and to be honest, I don't believe in astrology, but from the moment I was
born, it's been a part of my life. In India, it's like smoking. You might not smoke, but you're
going to get secondhand astrology. And lately, I've been wondering if the universe has been
trying to tell me to stop running and pay attention because maybe there is magic in the stars if
you're willing to look for it. So I rounded up some friends and we dove in and let me tell you,
it got weird fast. Tantric curses, Major League Baseball teams, cancelled marriages, K-pop.
But just when I thought I had a handle on this sweet and curious show about astrology,
my whole world came crashing down. Situation doesn't look good. There is risk to father.
And my whole view on astrology, it changed. Whether you're a skeptic or a believer,
I think your ideas are going to change too. Listen to Skyline Drive and the I Heart Radio app,
Apple Podcast, or wherever you get your podcasts. Alrighty, so evidence
that it was backwards. They started doing some studies. They started engineering organisms
with really, really high levels of free radicals or antioxidants and just sort of looking at what
happened in terms of lifespan. And of course, they thought, well, listen, if you got a lot
of free radicals, you're going to die a lot younger. It's going to be so painful.
Yeah, it's going to be really bad. And if you have really high antioxidant levels,
or we're going to engineer all this, bioengineer it, you're going to live a lot longer.
And they found the opposite was true, which was it like shook the medical community to its very core.
Yeah, so there was a type of roundworm that was genetically engineered to produce
lots of superoxides, way more than your average roundworm. And you would expect since superoxides
are a reactive oxygen species, one of the most damaging types of free radicals,
that those roundworms would just basically be born, you know, shout, why, why was I born and
then die? And that would basically be the lifespan of it. And that's not what happened at all. As
a matter of fact, not only did they live, they didn't die prematurely, they actually lived
32% longer than roundworms that hadn't been tinkered with genetically longer,
more free radicals, longer lifespan in this roundworm. And that definitely
got their bowtie spinning in the lab.
Yeah. And they also said, well, what about the other ones that were pumped full of antioxidants?
They died faster. And they're like, what is going on? Like, is someone switching out our
worms here? And they all looked at the one guy who didn't refuse to wear a bowtie.
He's like, why is everyone looking at me? I like my neckties. I like my clip on necktie just fine.
They accentuate my genitalia. What? Don't you remember there's a line from state in Maine
where this doctor wearing a bowtie says, never trust the person with a bow tie
because a tie is meant to accentuate your genitalia. I don't remember that line. I love that movie.
Yeah. Yeah. It was in there. My favorite part of that movie is when
Alan Baldwin is out on the date with Julia Stiles and drunk and crashes his car. And then he just
gets out of the car and kind of wanders off and goes, so that happened.
That movie was great. He's got that great last line too. He's like, well, it beats working.
Yeah. Beats working. That was a great movie. Maybe the best movie about the film industry.
Yeah. All right. So they said roundworms are one thing. We need to look at mice. So they buy
engineered 18 different strains of mice. Again, some with really high levels of antioxidants.
Others very low levels. They tracked these. They published. This is over like an eight-year period.
And one of the scientists that was talking about the results was like, he even cursed.
He did. He said, I watched those GD lifespan curves. There was not an inch of difference
between them. And basically it was, there was just no difference in lifespan. He couldn't find any.
No. There was like this guy worked for eight years breeding just different strains,
genetic strains of mice. And there was no difference. So like all this data starts coming in,
that one was 2008 to 2000 or 2001 to 2009, I think. And this data starts to accumulate.
They're like, did you hear about the roundworms? Yeah. Did you hear about the 18 strains of mice?
And he said, yeah, it's crazy. That guy cursed. And like as this stuff started to compile,
people were like, this doesn't make any sense whatsoever. I guess someone else threw out the
naked mole rat, the naked mole rat too, which apparently produces way more, naturally produces
way more free radicals than your average rat or mice mouse. I'm sorry. And they typically have
a lifespan that's about eight times longer in the wild than a wild mouse does, which again,
doesn't make any sense. So all this stuff starts coming in. And then finally, people are like,
well, wait a minute, there is a lot of people who are taking lots of antioxidant supplements
right now, because I don't think we really kind of like highlighted this yet. Like in conjunction
with those superfoods in the USDA promoting its auric chart, supplements blew up, especially
supplements that were proven antioxidants. People said, if you get a lot of vitamin C from blueberries,
what if I just took like fistfuls of like isolated vitamin C? If I just took tons of vitamin C
itself and just got rid of the blueberries, and a lot of Americans were doing that, taking lots
of supplements that were full of antioxidants. And now all of a sudden people are like,
uh, maybe we should look at how humans are doing with all this. And that's when, that's when it got
kind of scary all of a sudden, actually. Yeah. I mean, like you said, they had this robust population
so they could do these longterm human clinical trials. And all these studies started pouring in
that said people who were taking all these multivitamins are not living longer than the placebo
group. And sometimes even have a greater chance of dying from things like cancer or heart disease.
And these things that they're supposed to be protecting against by taking all these multivitamins.
Yeah. The exact opposite of what everybody thought.
Right. But here's the catch they found out is when they started to dig a little deeper,
in fact, they did one study in 1996 of 18,000 men and women. They found out that it was way
worse in people that already had something going on, like 28% more lung cancer, 17% more deaths in
a group that was given beta carotene and retinol compared with people who didn't get them. But
when they looked, they found out that, oh, but some of these people, like the highest rates were
among people who were smokers or who had been exposed to asbestos. And they were like, wait a
minute. In fact, they even called off a study in Finland because there were so many people getting
in the antioxidant group. A lot of these people were smokers. They were getting diagnosed
with lung cancer. So they was like, we got to cancel this thing and really see what's going on
here. From what I can tell, it wasn't just like they were like, okay, we don't know what's going
on. So we need to take a breather until we figure it out. I get the impression that they were scared
that they were actually giving people lung cancer by giving high doses of beta carotene to these
smokers and that they had to cancel the study as a result. And that that happened in more than
just one place. Particularly, it seemed like combining high doses of beta carotene, a very
potent antioxidant that's found naturally in things like carrots with people who smoke
an environmental toxin that produces lots and lots of free radicals, especially in the lungs,
was actually seeming to cause lung cancer, trigger lung cancer in people. So it was a really
scary, eye-opening, mind-boggling moment or not moment, but it's just course of years over the,
I guess probably the course of a decade when this stuff really started to come back
that really made people rethink whether we should be taking antioxidant supplements or not.
Yeah, and rethink in a big way. And we should point out, not every single study
had a result that was this bad, but at the best, they were inconclusive. So a lot of these journals
had to walk back a lot of stuff. In 2007, the Journal of American Medical Association said,
you know, we did these 68 clinical trials and antioxidant supplements do not reduce the
risk of death. I'm sorry, we've been saying that for a while. The American Diabetes Association,
American Heart Association now say, don't even take these supplements unless a doctor says,
like, you have a vitamin deficiency and you need to. And you need this one specific supplement,
not a bunch of them. And that or the poor oracle, that website that USA Today Graphic
just got taken down all together. Yeah, and they deleted the data with it too,
which I personally take issue with. Yeah, I agree. But that just kind of goes to show you,
and that's 2011 that happened, but that goes to show you just how sweeping the backlash was.
Hang on to the data though, like park it on our MySpace page or something. Sure, sure.
Yeah, you know, Justin Timberlake was a big investor in the second round of MySpace. I
don't think it went anywhere though. What's their second round? They tried to make a second round,
but it didn't really take off. Like recently? I want to say within the last seven, eight years.
Oh, wow. And I feel like he sunk like $100 million or some crazy amount into that to try to kick
start it again. And it just did not happen. The people had spoken, you know what I mean?
But there was a huge, huge backlash to antioxidants. But here's the thing,
and this is really important. I will go over it again in a second, but I just really want to
point this out. What they focused on, what seemed to be the problem was not antioxidants themselves,
was not eating a diet rich in antioxidant foods, a very colorful diet. So with all the different
kinds of nutrients that you get from that stuff, that doesn't seem to be the issue,
which is why I don't understand why the USDA took down that site. What seemed to be the issue
was taking enormous amounts on a daily basis of antioxidant supplements, isolated,
derived supplements that were high doses of antioxidants. But even still, we haven't quite
reached the point where we understand why that might be the case. And finally, we kind of get to
that because it's totally counterintuitive. Why would taking more antioxidants to balance out
oxidative stress in your body actually make you likelier to die from the very stuff that you're
taking supplements to prevent? Why Chuck, why? Yeah. Well, I mean, it seems like we mentioned
earlier that free radicals can really help out the immune system in a lot of ways. And that's
kind of what they landed on is that free radicals may not be the cause of this oxidative damage,
but might be the result of it. So if you're a smoker, or if you get that asbestos exposure,
your body is going to produce these free radicals to signal, like we mentioned earlier, like,
hey, something's wrong, you need to come down here and start, you know, get to work,
bring your little repair kit down here. Right. And if you're taking all these massive levels
of antioxidants, it's going to mute or muffle the work of those free radicals. And that's why
it explains the fact that people that had issues, like if you were a smoker already,
or that asbestos exposure, and you were taking all these things, it was kind of suppressing
your immune response. Right. They think it's almost like you were taking such a high dose of
these antioxidants that they came in and we're telling your body, we got this, even though it
didn't really have it, which allowed like a tumor to say run rampant, or it allowed for these processes
of like your, your arteries clogging or hardening to take place because your body thought it was
covered. That's the current theory. And again, we don't want to get ahead of ourselves if we
learned any lesson from the initial round of this. It's that we need to just kind of take
it all as it comes and try to figure it out. But that seems to be the, the current understanding
is that it sent, it dampens the signals that free radicals send to the immune system, which
actually allows disease to take place. It makes sense. You know, it's like, it's almost like,
you know, the, the immune system needs to be out a little out of whack to know it needs to wake up
and get to work. You know, so if it's not getting out of whack, because antioxidants are just keeping
that those electrons, you know, all locked in place or, you know, at least an even trade going on,
then your immune system isn't going to know what to do. It explains the roundworms. It explains
the, the exercise paradox. It all kind of dovetailed very nicely. Makes a lot of sense.
Yeah. And I mean, it also makes sense. So like when you use radiation therapy,
you're actually creating purposely free radicals that are targeting a tumor, a tumor so that those
free radicals go in and break up the tumor cell and destroy the cells that make up the tumor,
I should say. And that actually kind of jibes with something, a concept called hormesis,
which I heard about from a guy that you, me and I have been watching videos from named Dr. Mark
Hyman. And he's like a functional medicine doctor, which is basically like just kind of used the
whole body together and food is medicine kind of thing. Emily's way into that. Yeah. She would
love that guy all that. He's very down to earth and pretty interesting. But there's this concept
called hormesis that he talks about. It's not his concept, but he kind of punches it up a lot.
But he, hormesis is the idea that you stress your body slightly so that when it repairs itself,
it actually makes itself slightly stronger, which seems to be the basis of free radicals
and exercise, that whole exercise paradox, that when you exercise, you're actually stressing
your body so that when your body goes into repair itself, you are better off than you were before.
Like you can, you have a higher VO2 max or VO max. You have, your muscles are stronger because
they've been repaired stronger than they were when you tore them through exercise. That's why
you have a down day between, if you're like a big weight lifter, like I remember when I was a kid,
like I never lifted weights, but dudes would try to get me to and they would talk about weight
lifting a lot and they'd be like, yeah, I mean, you got to have that down day. You got to let
those muscles repair. Exactly. That's why you also want to eat protein after you exercise so
that your body has a supply of stuff to rebuild those muscles with and make them stronger.
But there's this whole idea that free radicals play the roles in all of these different things from
hormesis, like exercise to signaling to actually being part of the immune response that messes up
cells that we don't want, like tumor cells. And so if we suppress them with high doses of
antioxidant supplements, it interferes with our body's natural ability to do that. Rather than
helping the body, we actually seem to have been hindering it with antioxidant supplements.
Yeah. And it's kind of interesting. I think like even though,
even though the doctor wasn't right on the money, I think in the end, it did a lot of good because
I think where we landed and where we are now is you shouldn't necessarily believe anyone when
they say they figured out the one thing about aging and dying and that it is a lot of different
things going on in your body over a long period of time. And you can't say, this is it. I figured
out the one single thing that's going to keep you young for more years and let you live longer
because there is no fountain of youth. No, no, that's the problem yet. But it does seem like
oxidative stress does play a role in it, but it's certainly not the key. It's way more complicated
than that. I was wishful thinking to think otherwise. But it seems like where medicine has
landed now is it still makes sense to reduce your exposure to things that cause oxidative stress,
like cigarette smoke or asbestos or all sorts of environmental toxins. And then to supplement
your body's ability to take on free radicals by eating a very healthy plant-based, although not
entirely plant, diet that's full of antioxidants because that seems to be true. But it seems
like extracting those antioxidants takes them out of context that when you eat them with food,
there's a bunch of other nutrients they interact with that seems to actually,
that's where the health benefits come from is from food. And we haven't figured out
how to replicate that and just extracting the antioxidants didn't do it. So eat a lot of colorful
plants and you will probably be a little healthier than you would have otherwise when you age.
Yeah. And if you really want bang for your buck, eat them raw.
Yeah, there you go.
May not be as fun.
It depends on the plant.
I like to roast that cauliflower in broccoli. Yeah.
Tastes so good, but if you can munch on some raw veggies, that's really, really, really good for
your body. But I think there are some processes like blanching that just lightly kind of cook
something that unlock a lot of those nutrients that otherwise would just pass right through
your pooper. Oh, yeah.
I think so. Yeah, I don't think raw is entirely the way. I'm sorry, raw people, but anyway,
you got anything else? I got nothing else.
Well, since Chuck said that, it's time, everybody, for Listener Man.
This is from the housing discrimination episode. That was a good one, if I may say so.
Hey guys, Chuck was talking about locking in property tax or saying you don't have to pay
property tax anymore. And while it's a good idea, this is basically what California did
when it enacted Prop 13 in 1978. And while the originally stated goal of stopping
displacement of older homeowners was a good one, its unintended negative consequences are huge.
Here in California, your property taxes are essentially frozen when you buy a property.
But the law also allows you to pass your tax basis to your children or grandchildren.
And the result is massive inequity. A very common situation here in San Francisco
is two households next door to each other at similar homes, similar age and similar financial
means, one of whom pays 10 times what the other does in property taxes while consuming the city
services those taxes pay for equally. It's a regressive tax that benefits the half of the
people who are lucky enough to inherit property while further burdening those trying to buy in.
Like rent control, it's a good idea, but flawed in practice because the people who have it are
not necessarily the people who need it. PS, you should mention The Color of Law by Richard Rothstein,
probably one of the best books ever written on housing discrimination.
And oh, I don't have that person's name and I feel bad now.
Probably Richard Rothstein writing anonymously.
I guess it's just anonymous. Sorry about that.
That was a good one. I'm interested because I guarantee that's the kind of thing where somebody
else will write and be like, no, no, no, that last writer had it wrong. Here's the real deal on that.
Who knows? I'm interested to see. I'd not heard of that before.
Yeah. I mean, Emily and I sort of lightly debated that the email. Actually, I've got it here.
It's from Eric from Cal Berkeley. So here, that's what he's talking about.
But yeah, we kind of debated that a little bit. I guess.
I don't know. I'm not sure I feel about it, so I'm not going to run my mouth.
Very wise, Chuck. Very wise. Well, thanks again, Eric. That was a very interesting email. And if
you want to be like Eric and get in touch with us about something that we possibly had overlooked,
we want to hear about it. You can send it to stuffpodcasts at iHeartRadio.com.
What advice would Lance Bass and my favorite boy bands give me in this situation?
If you do, you've come to the right place because I'm here to help. And a different hot,
sexy teen crush boy bander each week to guide you through life. Tell everybody, yeah, everybody
about my new podcast and make sure to listen so we'll never, ever have to say bye, bye, bye.
Listen to Frosted Tips with Lance Bass on the iHeart Radio app, Apple podcast,
or wherever you listen to podcasts. I'm Munga Chauticular, and it turns out astrology is way
more widespread than any of us want to believe. You can find it in Major League Baseball,
international banks, K-pop groups, even the White House. But just when I thought I had a
handle on this subject, something completely unbelievable happened to me and my whole view
on astrology changed. Whether you're a skeptic or a believer, give me a few minutes because I think
your ideas are about to change too. Listen to Skyline Drive on the iHeart Radio app,
Apple podcast, or wherever you get your podcasts.