According to one's own endurance. The rubbing method holds the right hand in the left hand and the left hand in the right hand, and the fingers rub the muscles from the wrist to the shoulder in a circle. Focus on rubbing the muscles in the armpit inside the arm. Knead inside and outside for 5 times. You can't rub it back and forth when you rub it. This can promote the circulation of arm lymph, improve arm edema and prevent fat accumulation on the inner side of the arm.