Generally, it is best to go to bed at ten o'clock in the evening, because there is a period of time to digest food after meals, and at this time, the homework is basically finished. I will get up at seven o'clock tomorrow morning and only sleep for nine hours to ensure adequate sleep.
The importance of sleep
Everyone should have a good sleep after a busy day. Sleeping is a physiological reaction, a part of brain nerve activity, and the result of inhibition of nerve cells in cerebral cortex after continuous excitement. When inhibition is dominant in the cerebral cortex, people will sleep. People have work and rest all their lives.
In neural activity, there are excitement and inhibition. Inhibition is to protect nerve cells, make them excited again and let people continue to work. The daily sleep time must reach 1 1 hour for children,1hour for primary school students, 8 hours for junior high school students and 7 hours for senior high school students.