2. Walk and sit correctly. When you walk, you should hold your head high and swing your arms. Always hold your arms on your chest. Abdominal muscles are weak and easy to protrude. Moreover, walking with swinging arms not only consumes a lot of energy, but also looks particularly energetic. When you sit down, you should also straighten your back, don't bend over, and don't straighten your abdomen, so that you can exercise your abdominal muscles and make them strong and not easy to collapse.
3. Cooperate with sports. Shake the hula hoop or do sit-ups and stretching at any time, which can gradually eliminate the abdomen.