Mark Sisson

How deep a hole can I dig for myself?

You know, and hopefully recover from it and improve as a result of it.

So it was all about performance for me for the longest time.

Oh, I'm now on a campaign to eradicate running.

Really?

We'll talk about that.

Yeah, I want to.

But, you know, as I think walking is the best thing a human being can do for oneself.

Yeah.

No, I mean, I've lifted weights.

So I've maintained muscle mass.

I've maintained range of motion.

I stretch a little bit.

I don't do yoga, for better or worse.

You know, we'll talk about diet.

I mean, I think 80% of my physical results, my body composition as a result of my food choices, which is what I've written about for 30 years.

Right.

You know, I started with just real food, but then sort of morphed into paleo and then primal blueprint and then keto and then intermittent fasting.

So I've been at the forefront of a lot of these different modalities.

Or these different ways of eating that manifest themselves in improvements in metabolic flexibility and metabolic efficiency.