Stand away from the wall 10 cm, lift your heels, support them on your toes, stand up straight and keep your head down for a while. You can exercise your waist for a long time.
First of all, you can make your posture look better. Secondly, correct the bad habit of hunchback. On the one hand, you can exercise your body shape, on the other hand, you can improve your temperament. The figure is more beautiful, and slimming is the inevitable result.
When standing against the wall, it also reduces food intake and muscle movement and stretching. Although the daily amount is not much, it accumulates day after day. The effect is considerable.