First, practice raising your arms every day. Your arm will consume a certain amount of fat during exercise, which is also good for joint activities. Many people sit at work all day and have no time to exercise. It takes them ten minutes to raise their arms every day and keep them in a straight line with their bodies to keep their arms straight. If you can't hold on for ten minutes, you can lift each arm 200 times and try it slowly.
The second is to draw a circle with your arm, anytime and anywhere. First straighten your palm, which needs to be perpendicular to your arm, then straighten your arm and start drawing circles from your chest to both sides. In the process of drawing a circle, your arm can't bend. Clockwise or counterclockwise, arms exchanged. After doing 15 minutes, you will feel pain in your arm, which is the beginning to take effect.
The third is to put your hands together, which many people know, but few people can insist. Hands folded should belong to yoga. First, put your hands above your head, put your arms against your ears, and try your best to keep rising. At the same time, your arms are tighter than your ears. This method will obviously eliminate the fat at the root of your arm for a few days.
No matter which method needs your own persistence, you can see your own results if you persist.