When inhaling by reverse abdominal breathing, the abdomen is closed and the chest is lifted. With the sinking of soft ribs and sternum, the range of activities of diaphragm and external intercostal muscles increases, and the downward stroke of diaphragm increases. The thoracic diaphragm descends like a piston, so that the lungs, under the control of the costal nerve, drive the alveoli to expand horizontally under the chest cavity and deep in the abdomen.

Abdominal breathing method uses abdominal muscles to strengthen the movement of diaphragm. Long-term practice can expand lung volume, strengthen the function of countless capillaries in gastrointestinal tract and its vicinity, and absorb a lot of nutrients. After practicing abdominal breathing, I feel good appetite, adequate nutrition, full of energy, and everything is peaceful and comfortable.

Extended data:

Precautions:

1. Take a deep breath and breathe slowly.

Breathe through your nose, not your mouth.

3. Breathing in one breath is about 15 seconds. That is, breathe deeply for 3-5 seconds, hold your breath 1 second, and then exhale slowly for 6- 10 second. When the skill is deep, it can last for a long time.

4, each time 5- 15 minutes. Do it for 30 minutes.

5. Users with good health can hold their breath for a long time, and the breathing rhythm should be slowed down and deepened as much as possible. People in poor health don't have to hold their breath, but they should take in enough gas. Practice 1-2 times a day, sit, cross, walk and run until it is slightly hot and sweaty. Try to inflate and deflate the abdomen 50- 100 times. If oral liquid overflows when breathing, you can swallow it slowly.

Baidu encyclopedia-abdominal breathing

Baidu encyclopedia-reverse abdominal breathing

Baidu encyclopedia-natural abdominal breathing