Generally speaking, the normal adult sleep time should be 6-8 hours, get up at 7:00 am and go to bed at 11:00 pm is a more reasonable work and rest time, can go to bed early and get up early is the most beneficial to health. There are several benefits of waking up early, first of all, there is enough time in the morning, you can avoid the mental stress brought about by the lack of time, especially for office workers, some people take to cancel breakfast to make up for the lack of time, which is not good for health. In addition, the brain has a sufficient warm-up period to be able to give full play to its efficiency, and thus ensure that work and schoolwork are completed. But the actual situation and biological clock of each person is also different, so the key to sleep time and wake up time in the usual work or life is to pay attention to two points: first, is to be regular; second, is to feel comfortable, to do with the body’s biological clock synchronization, the formation of a regular is the most conducive to physical health.