视频简介
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 ...。《PRODUCE 48》是韩国Mnet在2018年推出，由韩国多家经纪公司、以及日本AKB48集团两方的旗下艺人共同演出的选拔/生存实境节目，为《PRODUCE 101》系列节目的第三季。参赛者在节目中将会同吃同住、完成各种任务。选拔方式与前作相同，参赛者国籍与赛制并无相关，仅限韩国观众可参与投票，最后获选的12名成员将会组成一个团体，以该团体身份活动2年6个月。。'JFK: Seven Days That Made a President' investigates the seven key days in JFK's life that helped shape his character and have come to define him. They include the day he nearly died as a teenager from a mystery illness| the day, as a PT boat captain his boat was sunk by a Japanese destroyer killing two of his crew| the first televised presidential debate with Richard Nixon, hi...。
