1. Diaphragm breathing is also called abdominal breathing, and some are also called elixir breathing. The diaphragm lies below the heart and bilateral lungs; The upper part of the liver, spleen and stomach is the separation between the thoracic cavity and the abdominal cavity, and the diaphragm moves up and down with the respiratory movement. 2. Abdominal breathing is to move the diaphragm up and down. When inhaling, the diaphragm will drop, squeezing the organs below, and the stomach will expand instead of the chest. Therefore, when exhaling, the diaphragm will rise more than usual, you can take deep breath, and it is easier to spit out more
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