Peter Attia, M.D.

The numbers are staggering how much attrition there is between birth and... So, and then you end up at birth, you have 1 million and something like that.

That's a very interesting idea, right?

Which is maybe you make, I mean, let's just pretend we got these numbers right, but directionally, let's say you make a million, you have the first 18 years of life or whatever it is, or 16 years of life to select the best of those.

And so it's not a stochastic process that takes you from the million to the 10,000 or whatever the number is.

It's truly a winnowing down of the best of the best of the best.

And by the way, how high a peak is this mini puberty and how long does it last?

Does the female do it as well?

In other words, does the female experience a rise in estrogen?

There's a very narrow window of time, right?

Three to six months.

It's such a beautiful thing to watch if you just stop judging it for a moment and just ask yourself the why question, like what is driving this behavior, right?

So for whatever reasons that are tragic, this has become a political discussion, but it's really not.

It's simply a discussion of biology and it's endlessly fascinating.

Why is it that when I walk into the pantry and I see a candy bar versus a

a cheese stick or something, I want to eat the candy bar.

Well, that's evolution.

I can make a choice not to do it, but it would be silly for me not to appreciate how much my brain looks at the candy bar and sees the sweetness, the energy density, the fat, the sugar, and it's like, yeah, that's what I want versus pick the bland, healthier option.

And similarly, when we watch kids play, I find it very interesting.

I wasn't obviously aware of half of what you're saying, but this idea that if you let boys duke it out the way we all did, that ultimately it settles them down.

Again, because it's probably too soon to tell what the results are of the natural experiment where kids play less.