Falling asleep used to be looked at as something that happened gradually until sleep set in, but researchers have found that is not the case. After you close your eyes, there is actually a certain ...

The brain doesn’t gradually fall asleep. Instead, it reaches a tipping point at which it rapidly transitions from wakefulness to sleep in a matter of minutes – a discovery that could improve our ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." IF YOU ASK someone to describe the process of falling asleep, you might get one of two extreme answers.