Discover Science Facts That Will Amaze You, like why only female mosquitoes bite and how a candle flame contains a million ...

These fascinating science facts prove that reality is often stranger—and a lot more interesting—than fiction These ...

Sleep Cycles: One rapid eye movement (REM) stage and three non-REM stages that altogether last about 90 to 120 minutes Benefits: Physical and mental recuperation and memory consolidation Disorders: ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." While the buzzy sci-fi series is science fiction (obviously), Dr. Sward says there's plenty of real ...