Peter Attia

So your volume of air needed is much lower because you're just solving for the oxygen.

I do want to talk about that.

There's a lot I want to ask you about hyperbaric oxygen, but I want to finish the swing on this particular application.

When was it clear to the Navy the problem that you described, which is when we have closed circuit rebreathers with 100% oxygen, we're running into problems with our divers.

These problems are dramatic.

I mean, if you have a seizure at 100 feet, you're going to die pretty quickly.

So when did they come to realize this?

And was this a relatively recent discovery?

Was the Navy coming to you to say, look, we know this is happening.

Can you help us push the envelope?

I want to come back and talk about a lot of these things, but I feel like we should now get people up to speed on what ketones are.

Again, we can sit here and talk about this and take this stuff for granted all day.

You obviously threw around the term nutritional ketosis.

You've also talked about supplemental ketosis, sometimes referred to as exogenous ketones.

Let's start with nutritional ketosis and just give people some definitions of how you achieve it, how much variability there can be in a diet to get there, what the thresholds are, and a little bit about what's happening physiologically.

Let's talk a little bit about that.

You've mentioned it a few times now.

So let's help folks understand what's going on here.

So this was first identified in kids.

So what gave them the idea?