Abdominal breathing is a breathing method in which the ups and downs of the abdomen are dominant, rather than the ups and downs of the chest or thorax, the main points of exercise are as follows: 1, try to elongate each breath, the so-called deep inhalation, deep exhalation; 2, generally inhale gas slowly with the nose, and then exhale slowly with the mouth; 3, the time of each inhalation and exhalation can be controlled at about 15 seconds, inhalation Gas after insisting on 2-3 seconds, and then slowly exhale, every 5-10 minutes after the exercise can be carried out once, each exercise time can be maintained at about 20-30 minutes, according to each person’s physical condition is different, abdominal breathing exercise can be increased one by one, step by step.