This episode of the Tim Ferriss show is brought to you by Kalm.

I was asked, Lebron James, you've probably heard of him.

What is the single most important element of his training regimen?

And I may have edged into it slightly differently, but in fact that's what I was asking.

And you know what he said?

He did not say windsprints, cryotherapy maybe, egg white omelets with a side of butter and not squash.

No, no, and although it's unsolicious, no.

What he focused on, what he said was sleep, whether you're an athlete, programmer, or student, healthy sleep.

That is restorative sleep is essential to peak performance.

It strengthens your immune system, improves cognitive function, like problem solving and decision making.

It gives you creativity and energy, or at least certainly fosters all those things that you want to bring into your day.

And I've suffered with sleep, or I should say poor sleep for a very long time, and have sought out different tools to help me optimize and improve.

Not just the duration, but the quality of my sleep.

And as a lot of us know, there's a common problem.

Sound sleep is a rare thing.

And this is particularly true when you're hyper caffeinated, hyper connected, hyper stimulated in a modern digital world.

But there is a place to get rest, and that is calm.

The number one app for sleep downloaded by more than 60 million people.

It's really easy to download.

Just download calm, and you'll find a whole library of programs designed to help you with healthy sleep.

Like soundscapes, guided meditations, and more than 100 sleep stories narrated by soothing voices like those of love, our burden and nick offer.

And right now listeners of the Tim Ferris show that's you guys get 40% off a calm premium subscription at calm.com slash Tim.

...