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据说那些晚上精神十足,习惯于开“夜车”的人的体温和荷尔蒙的节律往往在早晨处于低潮。对这样一些属于夜猫子型的人来说,起床后的一段时间,实在是相当难熬的。尤其是那些从一早起必须提起精神工作的工薪人员,就更够呛了。通常,人在入睡后不久,即进入深沉的睡眠(非雷姆睡眠)。随后又转入出现梦幻现象的较浅的睡眠状态(雷姆睡眠)。这二类睡眠约需要一个半小时到二小时。以后,这个周期重复三五次,也就到了天明。医
It is said that those who are energetic at night, people accustomed to open “night trains” people’s body temperature and hormonal rhythm often in the morning at a low ebb. For some of those who belong to the night owl type, get up some time, it is quite tough. In particular, the wage earners who have to take up their mental work since early morning are even more chokeful. Normally, people enter deep sleep (non-Rem sleep) shortly after falling asleep. Then turn to the fainter state of sleep (Rem sleep). These two types of sleep takes about an hour and a half to two hours. Later, this cycle repeated three or five times, it is dawn. medical