James Nestor

They're doing the opposite.

That's why their fingers are tingling.

They're always cold.

About 90% of the exercise that people are doing can and should be done through the nose.

There are some stages of deep zone four, zone five, when you are absolutely sprinting, you're doing CrossFit, you're in martial arts, whatever,

elite trainers are now teaching athletes to use mouth breathing as a shift in the fifth gear, right?

To consciously say, my body can benefit from a few mouth breaths.

as you dunk on someone's head, and then you go back to breathing through the nose.

So there's a time and place for everything if it's conscious.

What I'm talking about is the vast majority of our time, we're not in zone four, not zone five.

We're not even exercising.

We're sitting down.

And if you're sitting down or you're standing,

breathing through the nose is going to be so much more beneficial, not only from that efficiency side, but because you release about six times more nitric oxide breathing through the nose.

This is this miraculous molecule.

that helps expand blood vessels, helps deliver more blood more easily around your body.

It's what they use in erectile dysfunction drugs.

The way those things work is nitric oxide.

It's a vasodilator, so it dilates the blood vessels down south, but it also dilates the blood vessels all over the place.

And you can do this naturally, breathing through your nose.