Rubbing the abdomen can increase the blood flow of abdominal muscles and intestinal smooth muscles, increase the tension of muscles in the inner wall of gastrointestinal tract and the function of lymphatic system, make the secretion function of gastrointestinal organs active, effectively strengthen the digestion, absorption and excretion of food, obviously improve the peristalsis function of large intestine and small intestine, and prevent and eliminate constipation, which is especially necessary for the elderly. The acceleration of blood circulation can effectively burn abdominal fat, thus having the function of losing weight.