NOVA: Mysteries of Sleep Like virtually every other animal, humans need sleep to survive. But why? NOVA: Mysteries of Sleep Like virtually every other animal, humans need sleep to survive. But why? What do we gain from spending nearly a third of our lives in such a defenseless state? And what's at stake if we sleep poorly? The functions of sleep have long been something of a mystery. But now scientists are peering deep into the brain to see what happens while we snooze. One study reveals that well-timed bursts of pink noise can nudge a person's brain waves, extending periods of slow-wave, or deep, sleep. And toddlers learning new words show that taking even a short nap after learning something new can help the information stick. And when it comes to sleeping poorly, it may turn out that having interrupted sleep can be just as harmful as missing sleep altogether. As scientists come to understand the powerful role that sleep -- or lack of it -- plays in everything from memory to trauma to emotion regulation, one thing is clear: This biological function is as crucial as it is complex.详情
Copyright 2009-2029 www.sgcyjy.net Inc. All Rights Reserved. [星辰影视] 星辰影视(www.sgcyjy.net)秉承以免费的服务宗旨,流畅的播放速度,海量的影视资源服务于广大影视爱好者们。星空影视所有影视资源天天更新,希望能带给您些许心灵上的慰藉!