Dr. Rhonda Patrick

And that actually happens also regulated by norepinephrine or noradrenaline through a protein called PGC1-alpha.

And what that protein does is it makes more mitochondria in your adipose cells.

So per adipose cell, you're getting more mitochondria.

It's a beautiful way to basically make more heat.

It's one of those things where it's like your body's going, okay, I'm going to be exposed to this cold next time.

How can I make sure I don't die?

Oh, I can have more mitochondria and I'm going to make more heat.

And so you're making more mitochondria in your adipose tissue.

And this is often referred to as like the browning of fat.

And the reason for that is because if you look under a microscope at a lipid drop, you know, basically a fat cell.

not a lipid drop, an adipocyte, you'll find that it looks darker because there's more mitochondria in there.

So it's referred to as browning fat.

That's awesome.

You want more mitochondria in your muscle.

It's associated with improved muscle mass, improved endurance.

I mean, mitochondria are essentially...

than making energy in your cell.

And we don't make more mitochondria normally, like you have certain inputs, high intensity interval training exercise can do it.

Your cells are turning over, you make new cells, you replace old ones with your mitochondria.

You don't really do that for the most part.