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田野一郎小时候十分疼爱家里的柴犬－次郎，不过在次郎车祸丧生后，伤心不已的一郎拒绝拒绝再养狗。妻子美里某天突然带回一只拉不拉多，理由是朋友出国需要帮忙照顾，自己会负责喂食遛狗，坚持把狗狗留下，并取名为 Lucky。Lucky 每天总是静静地待在家里，默默陪伴着一郎工作，慢慢地让一郎敞开心扉。不幸的，一郎猝然病倒，仅剩下Lucky……。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 ...。