It is not recommended to exercise after 22:00 at night, because around 22:00 the body is about to enter a sleep state, at this time exercise may cause continuous excitement in the cerebral cortex, a rapid heartbeat, sleep difficulties and other phenomena that can easily lead to insomnia, which in turn affects the next day’s mental state, work and learning efficiency. If you want to exercise at night, you can do it at 18-20, but you need to start 30 minutes after eating dinner, so as not to affect the body’s digestive system, this time period is the peak of the body temperature during the day, which means that the muscles are more flexible, is the peak of muscle strength, exercise more effective. Exercising in the evening helps with the digestion of dinner and does not lead to fat accumulation. However, because each person’s physical condition is different, exercise programs need to be based on their own circumstances, the amount of exercise should be moderate, the intensity of exercise in a gradual manner. If you feel tired or uncomfortable during the exercise process, you can reduce the amount and take a rest. In addition, if you work or study all day, to the evening is very tired, do not want to exercise at night, you can also choose the morning or noon exercise. The morning air environment is better, this is a more adequate time of the day, after the exercise can make the body more energetic. Walking after lunch can promote digestion, reduce the fat hoarding caused by the afternoon sedentary, beneficial to the human body.