据认为,1986年美国航天飞机挑战者号发生爆炸事故的原因之一,就是因为为发射做准备的工作人员睡眠不足;同一年,切尔诺贝利核电站发生事故,也是因为职员困倦到了极点。加拿大一位教授做的专项调查表明,春天少睡一个小时,交通事故增加7%;秋季多睡一个小时,交通事故减少77%。在一天中,缺觉4小时,反应能力就会下降45%。人到底睡几个小时才算充足呢?有人在北极黑夜做过这样的实验。把记时器收起来,想 It is believed that one of the reasons for the 1986 bombing of the US space shuttle Challenger was the lack of adequate sleep for workers preparing for launching; the same year Chernobyl accident was also caused by the drowsiness of staff. A special survey conducted by a Canadian professor showed that in the spring, when sleeping for an hour less, traffic accidents increased by 7%. In the autumn, as much as an hour’s sleep, traffic accidents were reduced by 77%. In a day, lack of consciousness 4 hours, the reaction ability will drop 45%. How many hours did a person slept enough? Someone did such an experiment in the Arctic. Close the chronograph, think