At night 10 or so, it will have a bad influence on the body. Because the best start time for human body to sleep at night is from 9: 00 pm to 10 pm, at this time, regardless of the amount of exercise, blood will be distributed to the exercise system, and all organs of the human body will be excited, thus affecting sleep. In addition, sweating, hunger, bathing and eating after exercise will affect the digestive system of the human body. As the saying goes, work at sunrise and rest at sunset. It is best to exercise for 2 to 3 hours before going to bed at night, otherwise it will cause disorder to the biological rhythm of the body.