Breathing is one of the basic physiological signs, and at the same time, it is an important way to maintain health. As the ancients said, “The way to maintain health is just one breath and one inhalation”, and one breath carries the energy of life. Scientists have found that the spreading area of human lung cells is as big as two soccer balls, but most people use only one-third of their capacity in their lifetime. In ancient China there were many breathing exercises called tonics, which will not be expanded here. Only the simplest form of abdominal breathing will be discussed in this article. It is clinically observed that breathing in subhealthy people is often problematic, mainly in the inability to breathe deeply. The problems are: 1. Breathing is too short, often exhaling hastily before the inhaled fresh air has penetrated deep into the lower lobe of the lungs, which is equivalent to not absorbing the beneficial components of fresh air. Sedentary office workers, due to the sitting posture of the constraints and fixed, usually shallow short, rapid breathing, each time the amount of air exchange is very small, so resulting in the normal breathing rate, but still inadequate ventilation, the accumulation of carbon dioxide in the body; coupled with long hours of brain work, the body’s oxygen consumption, which in turn causes the brain hypoxia. So white-collar workers often dizziness, weakness, drowsiness and other office syndromes. 2, tightening of the chest and abdomen when inhaling, but bulging when exhaling, this breathing, many of the alveoli at the bottom of the lungs do not undergo thorough expansion and contraction, do not get a good workout. This way oxygen cannot be adequately transported to all parts of the body, and over time, various organs of the body will have varying degrees of hypoxic conditions, and many chronic diseases are born as a result. 3, lifting the shoulders, expanding the chest or tilting the back when breathing. If these problems occur during calm breathing, it means that there are too many auxiliary muscles involved in the breathing action, such as the sternocleidomastoid, rhomboids, back muscles and chest muscles. When you breathe like this for a long time, these muscles are overworked, which can cause discomfort in the cervical spine and back, and even cause chest tightness and heartburn. We need to learn abdominal breathing, which can increase the range of motion of the diaphragm, which directly affects the ventilation of the lungs. Studies have proven that for every centimeter of diaphragm drop, lung ventilation can increase by 250 to 300 milliliters. Adhering to abdominal breathing for six months can increase the range of motion of the diaphragm by four centimeters. This is a great benefit for the improvement of lung function and is one of the important rehabilitation tools for senile emphysema and other pulmonary ventilation disorders. It can also improve the function of the abdominal organs. It improves the function of the spleen and stomach, which helps to relieve the liver and promote bile secretion. Abdominal breathing can lower blood pressure by lowering abdominal pressure, which is beneficial for patients with hypertension. Why is abdominal breathing so relevant to life? Because the abdominal cavity harbors part of the digestive, hematopoietic, reproductive, urinary and endocrine systems and the lymphatic system, and has a large number of vascular nerves. Due to the regular increase or decrease of abdominal pressure, the activity of intra-abdominal organs is strengthened, which improves the blood circulation of the digestive tract, promotes the digestive and absorption functions of the digestive tract, promotes intestinal peristalsis, prevents constipation, plays a role in accelerating the discharge of toxins, reduces autointoxication, and achieves The purpose of slowing down the aging process. Abdominal deep breathing is simple and easy to learn, standing, standing, sitting, lying can be feasible at any time, but lying on the bed is better. Lie on your back, loosen your belt, relax your limbs, focus your mind and eliminate distractions. Inhale slowly from the nose, bulge the belly, and then exhale slowly, the stomach inward. Breathing should be soft, even, long and deep. The left and right hand can be placed on the upper abdomen and front chest respectively, so that it is easy to observe the movement of the chest and abdomen. Breathe with the abdomen inward and outward, while the thorax maintains a minimum range of motion or does not move. Or practice in the mirror, only the abdomen inward and outward, and pay attention to observe the thorax, shoulders and neck preferably without moving or slightly moving. A healthy body is not about how developed the muscles are, but about the ease and calmness with which the basic actions of daily life are accomplished, and breathing is nothing less than the most basic action, which happens all the time and is self-adjusting. After a period of abdominal breathing training, the body will gradually become better, especially some sub-healthy friends, through such exercises, energy and strength will be significantly improved. Of course, some people can not breathe well with the neck, chest and abdominal muscles, fascia tension or certain diseases have a relationship, it is best to find a professional doctor consultation treatment.