7 年前
视频简介
该片讲述了孤儿阿曼达·莱蒙与外貌和自己极为相似的富家千金爱丽莎·卡勒威在夏令营意外邂逅后，决定互换人生，并设法促成各自的监护人走到一起的故事。。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 ...。
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