The more people fight, the higher the damage. Man-to-man combat refers to the acupoint of the person who attacks the other side in the struggle, and the person is located in the depression of the lower edge of the upper lip. This point is an important point of Qi Hai, and it is considered as a sensitive point. Being hit can cause severe pain and a certain degree of unconsciousness. Fighting and riding a man means to quickly attack the opponent's acupuncture points with your fingers or fists in order to quickly knock him down. Therefore, it is more harmful than the struggle between people.