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秦小汉是一个80后，也是个不会演哭戏的演员，尤其是在感情戏中，一次在片场拍摄感情戏因为哭不出来被导演痛批，深感伤自尊的秦小汉决定重回大学校园学习表演，不成想在学校遇到了不同性格的室友，还经历了一段刻骨铭心的感情，使秦小汉真正找到了演哭戏的灵魂——情感经历，秦小汉的感情之路和演艺之路都将何去何从？。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 ...。