人的一生有 1 /3时间是在睡梦中度过的。一生到底需要多少时间睡眠 ,不同的人是不一样的。据报导拿破仑每天睡 3～ 4小时 ,托尔斯泰和爱迪生每天睡 5～ 6小时 ,而爱因斯坦每天睡 9个小时仍不够 ,他从来不放过午饭后打个盹的机会。约翰·肯尼迪也一样 ,他常说 ,他的许多成就得益 One third of a man’s life is spent in his sleep. How much time does it take to sleep in the end of life, different people are not the same. It is reported that Napoleon sleeps 3 to 4 hours a day, Tolstoy and Edison sleep 5 to 6 hours a day, while Einstein sleeps 9 hours a day is not enough, he never missed a nap after lunch opportunity. The same is true of John F. Kennedy, who often says that many of his achievements have benefited