Sleep

It turns out you don't need a brain to sleep.

Here is the science behind 13 Halloween horrors come to life.

The main function of sleep may change as our brains do.

With lucid dreaming, people can stop or even control their dreams.

And freezing that fat could potentially help ease symptoms of the disorder.

A new video shows the rhythmic sloshing of cerebrospinal fluid in the human brain during sleep.

A rare syndrome leaves a teenage girl bedridden from excessive sleepiness.

New genetic research in mice may reveal why some people need less sleep than others.

Does drinking chamomile tea actually make people sleepy?

If you're not a morning person or a night person, but more like a midday person, don't feel left out.