关键词：睡眠之谜 Mysteries Sleep Like virtually every other
NOVA:MysteriesofSleepLikevirtuallyeveryotheranimal,humansneedsleeptosurvive.Butwhy?Whatdowegainfromspendingnearlyathirdofourlivesinsuchadefenselessstate?Andwhat'satstakeifwesleeppoorly?Thefunctionsofsleephavelongbeensomethingofamystery.Butnowscientistsarepeeringdeepintothebraintoseewhathappenswhilewesnooze.Onestudyrevealsthatwell-timedburstsofpinknoisecannudgeaperson'sbrainwaves,extendingperiodsofslow-wave,ordeep,sleep.Andtoddlerslearningnewwordsshowthattakingevenashortnapafterlearningsomethingnewcanhelptheinformationstick.Andwhenitcomestosleepingpoorly,itmayturnoutthathavinginterruptedsleepcanbejustasharmfulasmissingsleepaltogether.Asscientistscometounderstandthepowerfulrolethatsleep--orlackofit--playsineverythingfrommemorytotraumatoemotionregulation,onethingisclear:Thisbiologicalfunctionisascrucialasitiscomplex.详情
