When I first heard about it, I tried it on my own.

I have asthma, so I can't hold my breath for very long.

When I actually went and got tested, they're like, blow out,

there's a computer program where you blow candles

on a computer through a device.

It's basically like a breathalyzer.

And I have the lung capacity, this is kind of crazy,

but I have the lung capacity of like a 65-year-old,

as a 40-year-old.

So when I first did Wim Hof, the first thing to kind of do

is like hold your breath for as long as you can.

So I tried it.

And I'm in the gym.

It's I'm sitting by myself and I have my watch on.

I take a breath.

I hold it.

I hit the stopwatch.

And I'm like, OK, close my eyes and I hold my breath

for as long as I can.

And when it gets really hard, I'm like, OK, hold on, hold on,

hold on.

When it gets excruciating, so the point where I feel like my head

...