Peter Attia

Dom, you've been on the podcast a couple of times, but I know that in podcast land, A, we've probably got hundreds of thousands of listeners today that weren't listeners the first and second time you were on the podcast.

And frankly, those that were, I think it would be understandable that they've forgotten most of what we've spoken about.

And maybe just by way of background, I'll let folks understand how you and I connected.

I believe Ken Ford connected us back in 2011-ish, thereabouts.

At the time, I was about a year into experimenting with a ketogenic diet, having all sorts of interesting success with it for the most part, once I got over the hump of figuring out how to do it.

And I think we must have connected at his institute and then the rest is kind of history.

We then, through our friendship, became very deeply involved in the testing of the earliest generations of various forms of synthetic ketones, a topic we will undoubtedly get to today because it's impossible to imagine how much proliferation there has been of these things that were, I mean, literally you're sending me like dirty plastic bottles with stuff in my kitchen that I'm experimenting with.

And it's like, now look at what you've done.

So maybe let's just talk a little bit about how your interest in this space came to be.

So even for my recollection, I don't recall, your PhD was in neuroscience, if I'm not mistaken.

Let's go back to something you said at the outset, just because folks might not understand why the Navy would be interested in the effects of too much oxygen.

When you think of the Navy, you think of being underwater.

When you think of being underwater, you think of oxygen deprivation.

So what is it about certain types of diving that actually bring about the opposite problem?

Explain to folks exactly what that is.

How does a rebreather work?

What's the concentration of oxygen that they're breathing in?

And the reason that they can do that is because you're not wasting gas on the 80% nitrogen.

You basically store the CO2 that's coming out.

Once you've scrubbed it, you've got pure O2 coming in.