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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.小草影院韩国电影神马影院光棍影院星空影院神秘博士第十五季鬼怪万圣节陈梦吉计破脂粉阵粤语青田街一号美国梦魇德伯力克青春再见青春我声轰鸣洛克耶斯之夜量产型璃子 最后的模型女子的人生组装记傲骨贤妻第六季暗战2(粤语版)秘不可言高飞鸟什么，我是机器人华人儿媳大明王朝1566山有九色念有卿三人世界粤语寻找绝配情人 第三季灵异摄影师致命替身中间的房子迎风而立的狮子没关系，是爱情啊崛起2017合法入侵银河补习班腾讯视频独家纪录片2019尼诺神剑游龙
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.小草影院韩国电影神马影院光棍影院星空影院神秘博士第十五季鬼怪万圣节陈梦吉计破脂粉阵粤语青田街一号美国梦魇德伯力克青春再见青春我声轰鸣洛克耶斯之夜量产型璃子 最后的模型女子的人生组装记傲骨贤妻第六季暗战2(粤语版)秘不可言高飞鸟什么，我是机器人华人儿媳大明王朝1566山有九色念有卿三人世界粤语寻找绝配情人 第三季灵异摄影师致命替身中间的房子迎风而立的狮子没关系，是爱情啊崛起2017合法入侵银河补习班腾讯视频独家纪录片2019尼诺神剑游龙