A new video shows the rhythmic sloshing of cerebrospinal fluid in the human brain during sleep.
Everyone needs sleep, but many of us don't get enough. Here's the latest news on sleep, including the health effects of getting too little or too much, tips on getting more rest, and the science behind why we slumber.
Although the exact cause of these experiences remains a mystery, the authors say the phenomenon may be tied to certain sleep abnormalities.
Even if humans have trouble telling time in the "land of the midnight sun," many animals can adjust their schedules to the summer solstice.
If you're not a morning person or a night person, but more like a midday person, don't feel left out.
Sleep paralysis can be a confusing, frightening and occasionally pleasant experience — and it's more common than you might think!
Sleep learning, the way people commonly think of it, is almost certainly impossible. But researchers are discovering types of learning that occur during sleep, with exciting applications.
A new, limited-time-only burger at Burger King has a peculiar selling point: It's supposed to give you nightmares.
Skimping on just one night's sleep may lead to changes that could promote weight gain and muscle loss.
In waking life, such a case of quickly forgetting recent experiences would surely land you in a doctor's office. With dreams, however, forgetting is normal. Why?
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