Type O people

Type O is the man who is "recharge" type, as long as sleep time arrived, they often can sleep.In addition, the endurance of their also is very breathtaking, they can be three days and three nights without sleep, also can sleep for three days and three nights, it is incredible!

　　A type of person

Type A people are neurotic, as long as there is A little bit of trouble, will soon wake up, so A type of people often don't sleep well, can saying is "sleep very shallow" type.They usually, insist to the end, exhaustion, to fall asleep.

　　Type B people

Type B people is "everywhere can sleep" type, no matter what's a sentimental thing in the daytime, as long as to sleep time, they would have thrown everything, shout to sleep, and no matter where, can sleep very safe.Therefore, some people jokingly said, even if happened in the middle of the nightThe earthquake, the house collapsed, type B people are also don't know!

　　AB

Type AB people lack of sleep, because they often hard to go to bed very late, and in the middle of the night and wake up is not easy to fall asleep easily, so, they often show of fatigue, and will be on the bus, doze off in class.If AB people to overcome this problem, it must set schedule, to arrange time to rest, don't let yourself too tired.