The amount of exercise in the gym should be determined according to your own physique. Generally speaking, the appropriate exercise time is 1.5-2 hours. The first is fitness. You can run on the treadmill for 10 minutes, and then have an aerobics class for 45-60 minutes. Finally, several groups of targeted anaerobic equipment can be selected to practice, which can play a better shaping effect. It's best to rest for 20 minutes after exercise, replenish some water properly, and then take a warm bath. Doing this kind of exercise intensity two or three times a week can play a good role in fitness.