Action 1: Sit on the bed with your legs crossed, keep your back straight, put your arms through your fists, cross your hands forward, twist your fingers and make a fist. Slowly stretch your arms up, over your head to the back of your head, and feel the feeling that your spine extends to your fingertips. Try to look up and repeat the action several times. This action can not only eliminate arm fat, but also relieve arm pain.