李娜资料

茱莉是一家精英网球学院的明星球员，网球是她的一切。当她的教练受到调查并突然被停职时，俱乐部鼓励所有球员直言不讳。但茱莉却决定保持沉默。。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 ...。