People breathe by abdomen when they are born, and then they grow up slowly. Because of the relationship between time and personality, it gradually became chest breathing. The normal inhalation of human body can only reach the lungs, which is due to the blockage of micropores on the diaphragm, which affects the circulation of gas. The biggest disadvantage of this kind of chest breathing is that it can't inhale a lot of fresh air. Modern medical research believes that when people breathe in the abdomen, the tension and relaxation of abdominal muscles occur alternately, which makes the capillaries in local muscles contract and relax alternately, thus accelerating blood circulation, expanding the supply of oxygen, and at the same time being conducive to the elimination of metabolic products of the body, which plays a role in regulating and promoting the whole body organs and tissues; In addition, the contraction and relaxation of abdominal muscles is also a good massage, which can promote the movement of the stomach and abdomen and change the digestive function. At the same time, abdominal muscles are the motive muscles for defecation, so regular abdominal breathing exercise is also beneficial to prevent habitual constipation. Can greatly improve lung function?

The biggest feature of abdominal breathing is that it can increase the range of motion of diaphragm, and the movement of diaphragm directly affects the ventilation of lung. Studies have proved that the pulmonary ventilation can be increased by 250 ~ 300 ml for every decrease of diaphragm 1 cm. Persisting in abdominal breathing for half a year can increase the range of diaphragm activity by four centimeters. This is of great benefit to the improvement of lung function, and it is one of the important rehabilitation measures for pulmonary ventilation disorders such as emphysema in the elderly. Preparations before abdominal breathing exercise include: abstinence from alcohol, defecation and relaxing belt. Choose a place with fresh air, or stand or lie, and the posture is not limited. The basic essentials of abdominal breathing are: wholeheartedly, relax your shoulders, breathe first and then inhale, and inhale to flatten your breath. Specific methods: take the abdomen as a ball, inhale through the nose to make the abdomen bulge, pause for a second or two, and exhale through the mouth until the abdominal wall sinks. About five or six times a minute. Generally, it is twice a day, 10 in the morning and 4: 00 in the afternoon in the city, and each time is about 10 minutes.