We actually don't know the function of sleep all that well yet, but sleep is a time of quiescence in the brain.

So, sleep deprivation, and sometimes an insomnia, which is a little bit of a different form, but just getting a lack of sleep, can lead to a number of different decrements.

Workplace accidents with people who are sleep deprived or people who work shifts and they don't get the right amount of sleep during the day or at night.

So there's a few different ways that we treat insomnia. The first thing that we always do is we look at the cause.

We try not using medications initially, and we use something called behavioral therapy for insomnia. This changes behaviors people do in bed, none of the tossing and turning.

So when it comes to circadian rhythms, it's a clock that's basically programmed in our body. So if you think back to times when people lived on farms and we didn't have electricity.

We haven't really - it's harder for us to set those rhythms. So it's really important to keep a steady bedtime and wake time to really lock in those rhythms.

Now circadian rhythms become very interesting and problematic for patients because when you become a teenager, your rhythms actually tend to naturally shift.

So the deeper stages of sleep are really those times of quiescence, you're really restoring your body and we have a few different stages of sleep.

And you cycle throughout so that you do about five to six cycles throughout the night. And we spend more time in REM later on in the night than we do earlier on.

So people only focus on getting the really deep sleep, but in reality, we spend almost 60% of the night in the stage two sleep.

She smiled smugly. “We came to an agreement, the duck and I.

You actually cannot sell the idea of freedom, democracy, diversity, as if it were a brand attribute and not reality -- not at the same time as you're bombing people, you can't.

Repeatedly I have been impressed to learn that to reach a goal never before attained, one must do things never before done.

A kiss is one of the few futuristic events that comes to my present everyday..

...one half leaning in, one half pulling away.

Heaven is never deaf but when man's heart is dumb.

The revolution will survive. It does not rely solely on oil for its survival. There is a national will, there is a national idea, a national project.

loneliness is a twilight moment by feelings, longing after something or someone you can not reach

I dropped chemistry. I practically blew up the lab in college.

If you don't start out aiming for the big game, you almost never can get there.