男人一过40岁后,其生理现象与20多岁迥然而异,往往觉得20多岁的生理现象如做梦般,再也呼唤不回,不禁深深感慨“我已上了年纪!”事实上,性能力强弱与年龄、职业无关,倒是与睡眠有密切关系。最近流行拿破仑睡眠法,主张睡4～5小时即可,但是缩短睡眠时间,无非是意味着削弱男人之精力。费修博士研究睡眠与性关系时,发现一项有趣的关系,睡眠分为两种模式,一种为非速波睡眠 Men over the age of 40, the physiological phenomenon and 20-year-old is very different, often feel more than 20-year-old physiological phenomenon like a dream, never call back, can not help but deeply feeling “I have to age!” In fact , Sexual ability and strength and age, occupation has nothing to do, it touches on sleep are closely related. The recent popular Napoleon sleep method, claims to sleep 4 to 5 hours, but to shorten the sleep time is nothing more than impaired man’s energy. When Dr. Fisher studied sleep and sexual relationships, he found an interesting relationship. Sleep was divided into two modes, one for non-speed-wave sleep