It's HERTIME with Cody Sanders
Sep 1, 2026 · 53 min · 15 segments
Send us Fan Mail What if you’re doing all the “right” things for your health—eating well, exercising, taking supplements—and you’re still tired…
Cody SandersHostSo for all of us at first blush, we're like, hey, oxygen, I've been doing that my whole life.
So several million or billion, excuse me, years ago, one single cell organism ate another.
And after it engulfed it, it realized it could get more energy, not from digesting it by keeping it captive because it was spitting off so much energy.
And that little organ that it ate became what we now know as our mitochondria.
So our mitochondria started as a separate bacteria that figured out that if it used oxygen, it could produce about 20 times more energy than if it didn't have oxygen.
And that's why we all know that oxygen is like absolutely critical for complex life as far as we know.
Now, what happens as we get older and particularly as we get chronically ill, we lose about 1% of our body's ability to utilize oxygen every year.
That's not a well-understood fact, but- That's the reason why when you're 25, you feel one way, maybe 30, you feel slightly different, but then you get to like 50, you've already lost 25% of your ability to utilize oxygen.
And so that means there's 25% less ability for your body to use that high oxygen, high energy production method.
And it has to use this kind of lower backup energy generator, which we can get into.
And so that's the reason why you notice things like as you get older, you heal slower.
So for all of us at first blush, we're like, hey, oxygen, I've been doing that my whole life.
So several million or billion, excuse me, years ago, one single cell organism ate another.
And after it engulfed it, it realized it could get more energy, not from digesting it by keeping it captive because it was spitting off so much energy.
And that little organ that it ate became what we now know as our mitochondria.
So our mitochondria started as a separate bacteria that figured out that if it used oxygen, it could produce about 20 times more energy than if it didn't have oxygen.
And that's why we all know that oxygen is like absolutely critical for complex life as far as we know.
Now, what happens as we get older and particularly as we get chronically ill, we lose about 1% of our body's ability to utilize oxygen every year.
That's not a well-understood fact, but- That's the reason why when you're 25, you feel one way, maybe 30, you feel slightly different, but then you get to like 50, you've already lost 25% of your ability to utilize oxygen.
And so that means there's 25% less ability for your body to use that high oxygen, high energy production method.
And it has to use this kind of lower backup energy generator, which we can get into.
And so that's the reason why you notice things like as you get older, you heal slower.
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