The specific methods are: 1. Slowly raise your arm, lift it from front to top, and slowly lower it from front to bottom, and do it 20~30 times at a time (or try your best, not limited). The upper body is required to be straight, the arms are straight, the shoulders are natural, and there is a feeling of lifting the chest muscles.

2. Bend the elbow at the shoulder side and turn slowly from front, up, back and down. After doing 8~ 10 times, turn around in the opposite direction. Require upper body and head integrity.

3. Put your elbow on your chest, and push your right hand slowly as far as possible, with your right foot starting to follow, your right foot leaning back, your left hand pushing up, and your left foot starting to follow, pushing up slowly in turn, * * * 20 ~ 30 times (or unlimited until the chest and arm muscles are sore).

If it's too much trouble, liposuction.