18 年前
搜影视
《向山海出发•青春篇》是浙江卫视推出的户外生活方式探索真人秀。不是人人都能随时奔赴远方的山海，其实山海就在脚下。这一季，山海探路小队轻装上阵，约上三五好友一起，用别样的角度，发现就在身边的“山海”。。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 ...。
