睡眠之谜

睡眠之谜电影免费高清在线观看全集。

　　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.

星空影院桃花影院九九影院私人影院樱花影院星辰影院青柠影院神马影院三妹影院牛马影院金牌影院恰礼乐少年心竞技虫霸天下阳光夏令营世纪人生：董竹君传奇不完美受害人富贵再逼人双凤奇案混在北京三个女人超人和露易丝 第三季史酷比：神秘的开始陷阱小公主艾薇拉与神秘王国爱上海史密斯蓝海少女欣德·拉贾布之声美国工资深呼吸的必要英雄联盟：双城之战 第一季双重追捕血拼金三角绝代双骄1979粤语中国惊奇先生上帝阴影下空姐的战争某一天家有喜旺第二季萌探探探案如果奔跑是我的人生爱情神话