Getting up early and going to bed early is good for your health. Since ancient times, people have followed the way of sunrise and sunset, which is more in line with the human biological clock and the objective laws of the human body. Because the human body has yang in the morning, if you get up early, you will be full of energy and start a day's work. At night, people's internal organs will begin to repair and detoxify. In the case of deep sleep, the internal organs will get a good rest, so people should not sleep too late.

In ancient times, because there was no electricity, people had no nightlife and it was dark at night. Just follow the laws of nature and start to rest. When the sun rises in the morning, you will naturally start working, which is also in line with the harmonious coexistence between man and nature. However, with the progress of the times, it is impossible for people to completely follow the ancient way of work and rest, and people's nightlife has begun to enrich. However, if they indulge in excessive revelry or work at night, it is also very harmful to the human body.

People nowadays don't go to bed early every night, but they shouldn't indulge themselves too much. It is best to rest before eleven o'clock in the evening, because the detoxification and maintenance time of internal organs has started from eleven o'clock in the evening. Always staying up late has an impact on physical function, which is easy to lead to aging and various diseases. Don't get up too late or too early in the morning, and sleep for a day should not be too short or too long.

In different seasons, the time for people to sleep and get up can also be adjusted appropriately. If it is winter, it is suitable to go to bed early and get up late at night to protect the yang in the body. If it is summer, it is suitable for staying up late and getting up early to adapt to the laws of nature.