Squat is a kind of strength training exercise, which can fully exercise the strength of the whole body and has no requirements for the venue. Basic dormitories are ok. But also helps to improve boys' sexual function. Don't squat, put your knees on your toes.

push-up

Push-ups are a common anaerobic exercise. Long-term exercise can exercise people's upper body, improve the strength of waist and abdomen, and develop abdominal muscles in a convenient way.

keep your stomach muscles in

Lie flat on the ground with your knees bent 90 degrees, your feet flat on the ground, your hands crossed on your chest, and your shoulders and abdomen sink into a group, one group makes twenty, two or three groups.

rope skipping

You can jump 100 in the dormitory, two groups a day. After 30 days, the eyes will get bigger and the face will get smaller. The graph is more linear.