8 年前
视频简介
这场为期八周的特殊科学实验通过让同卵双胞胎改变他们的饮食和生活方式，探索某些食物对人体产生的影响。。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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