You're going to go to sleep tonight, and you're going to have dreams, but what if you could

influence what you dream about? And as far as remembering what you dreamt about, what if you're

spending years of your life in a world that you never recall? Can nightmares be manipulated as a therapy? And our

dreams sometimes predictive of changes in your health before you become aware of those changes.

Today we talk with Adam Har Horowitz, a neuroscientist and dream engineer who is spending his

working days trying to help people during their nighttime.

Welcome to Inner Cosmos with me, David Eagleman. I'm a neuroscientist and an author at Stanford, and in these episodes, we sail deeply into our three-pound universe to understand some of the most surprising aspects of our lives.

So last night I had another dream, not uncommon for me, that I was about to give a big talk, and none of my slides made any sense.

There was an audience of about 4,000 people.

They were already seated.

But I couldn't actually remember what I had agreed to talk about at this conference.

And my computer was acting very strangely.

Nothing made sense.

And I couldn't move stuff around on the slides the way that I needed to.

So the clock was ticking down to my entry on stage.

And there was a building tightness in my chest,

and then bang, I woke up.

And here's my normal life and all my responsibilities, and I got up, and within minutes,

all of those details dissolved.

The conference, the lecture hall, the computer, that pit in my stomach, all of it slipped

away like I was trying to hold on to

smoke. Now, this kind of thing where we are fully and emotionally immersed in some bizarre reality,

...