Your brain’s natural rinse cycle flows while you sleep. A new study suggests certain medications interfere with that ...

Two studies published in the latest issue of Science have revealed that birds, reptiles, and mammals have developed complex ...

People with insomnia can have frequent difficulty falling asleep, staying asleep, and getting good-quality sleep.

What has puzzled researchers and philosophers for many centuries is the ‘why’ of sleep, along with the ‘how’. We human ...