Generally speaking, fitness exercise can be arranged at any time, but first of all, we must ensure adequate sleep and rest. Many occupations now have flexible working hours. As long as they have a relatively regular schedule and develop a physiological adjustment mechanism, there is no problem. For example, some people get off work at 24 o'clock every night, go to the gym after work, rest until 6 o'clock in the morning after exercise, get up in the afternoon and go to work at night. This kind of exercise is acceptable.

However, if you exercise until the early hours of the morning, you still go to work from nine to five, or even work overtime, which is very bad for your health. You can't patronize sports just because' life lies in sports'. This kind of exercise is unscientific and not recommended.