9 年前
视频简介
描述美国政府的细菌战实验室遭遇意外，一些足以令人致命的病毒从实验室的容器中流失，将实验室中几名科学家杀死。其中最厉害的一种病毒称为“撒旦病菌”，它能够杀死任何人，而这种病菌可能被一名疯子偷去了，于是当局想尽办法追踪捉拿这名疯子。。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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