Skipping rope, doing push-ups, swimming, running, eating less food that will make you fat, not overeating, controlling diet and doing more exercise. In fact, muscle exercise means that after a period of exercise, you will continue to exercise on the basis of streamlining your body. Look at your exercise and your usual control. Don't exercise too hard at first, but stick to the old saying that boys can't grow up if they exercise too much. Diet and exercise are more important to different people.