In addition, in order to practice muscles, don't exercise the same part every day. If a large muscle group is given enough exercise stimulation that day, the muscles in this part need to be separated for more than 48 hours before they can exercise again. Muscles grow at rest, so continuing to exercise the next day will affect the appearance of muscles. For example, you can't practice your chest muscles the next day, but you can practice your legs, back, abdominal muscles and so on. So you can practice your muscles every day, but you can't practice the same part every day.