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 ...。很难找到共同点的三个人,在未知的空间里睁开眼睛。是谁,怎么了,怎么把他们关在这里的?只有找回失去的记忆才能逃脱!疑问的空间,失去记忆被关起来的三个男女!只有依靠他人的声音,逃离。。