Do Bugs Sleep?
Almost all mammals, in fact, have REM sleep; birds do too, although only in the early parts of their lives. It seems that sleep and REM are required by a particularly complex kind of brain.
View ArticleSleeping in Stages
Sleep is divided into distinct cycles that contain four different types, or stages, of sleep. You experience stage one when you doze off at the office in the late afternoon, but you're still aware that...
View ArticleHow Time Passes In Dreams
So how many minutes or hours pass during a dream? Find out on this Moment of Science.
View ArticleWhen Is The Best Time To Study?
Students have sometimes found that after a good night's sleep they are able to remember material they studied the night before. Is this true?
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