This is the most powerful drug in the world.

And if you can figure out how to use that to your advantage, now we're talking.

If you were a patient of mine and you walked in and let's say you were taking 10 milligrams of Ambien,

I could utter one sentence looking at your medical chart and I could make that Ambien not work.

I could just turn to you and say, you have cancer.

Boom, you ain't sleeping that night.

His research has changed the way top CEOs, elite athletes and millions of people think about

sleep, energy and performance, a best-selling author and one of the most trusted sleep experts in the

world. Dr. Michael Bruce, thanks for being there. I think sleep is kind of like the volume knob

for greatness. When your volume is low, nobody can hear you.

You can't hear you.

You can't perform at the levels that you want to perform.

Sleep affects every organ system and every disease state.

Literally everything you do, you do better with a good night's sleep.

What ruminates in the mind that causes us not to sleep?

That is literally the number one question that I'm asked is,

what do I do if I wake up in the middle of the night,

somewhere between one and three, and I can't get back to sleep.

What do you do?

So I've got a whole routine, and I tell people all the time about it.

So first of all...

You said there's a difference between

...