Sleep is not about time, but about quality. The longer the better. Scientific research shows that 9- 10 is the dormant period of immune lymphatic system, so it is best to keep quiet or listen to some soft music at this time, and the time from 10 to 3 am is the time for liver detoxification. At this time, it is best to be in a deep sleep state, and noon is also a weak time, which is suitable for shallow short sleep. Of course, generally speaking, 8 hours' rest every day is enough. Separately, people's sleep time should be distinguished according to their age.

Newborns need more sleep time and at least 20 hours of deep sleep every day. The baby's sleep time is 14- 16 hours. Childhood needs 10- 12 hours. Nine hours in middle school. Eight hours is enough for college students like adults. Old people will lose 6-8 hours enough for metabolism.

The amount of sleep is also related to your work. Distinguishing whether one's work is physical or mental, Professor Masajiro Inoue of Tokyo Medical University thinks: "To eliminate physical and mental fatigue, only the first three sleep cycles are enough (4-5 hours), and there is some extra sleep." This is true in scientific theory, but everyone's physique is different and their sleep time is different.

While paying attention to sleep time, we should also pay attention to what kind of sleep is the right health care. When sleeping, you should hold your right hand horizontally, bend your legs slightly, put aside other thoughts and relax your whole body, which will help blood flow into your heart, promote metabolism and improve the quality of sleep.

Therefore, health sleep is not the length of time, but the quality of sleep. In order to have a healthy body, quiet sleep is the best.

This is the answer that Bian Xiao brought you today. I hope I can help you!