Healthy, people are born with abdominal breathing, and then grow up slowly. Because of the relationship between time and personality, they gradually turn into chest breathing. Abdominal deep breathing is a good way to strengthen the lungs. Abdominal breathing has the following advantages:

First, expand vital capacity and improve cardiopulmonary function. It can expand the chest to the maximum extent, make the alveoli in the lower part of the lung expand and contract, let more oxygen enter the lungs, and improve the cardiopulmonary function.

Second, reduce lung infections, especially pneumonia.

Third, it can improve the function of abdominal organs. It can improve the function of spleen and stomach, and is beneficial to soothing the liver and benefiting the gallbladder. Abdominal breathing can reduce blood pressure by reducing abdominal pressure, which is very beneficial to patients with hypertension. Fourth, it is conducive to calming the nerves and increasing wisdom.