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What is the principle of lifting your back every time you eat food?
Lifting away from food is the practice method of abdominal breathing. Its principle is to change the position of the lungs by changing the position of the abdomen, thereby increasing the capacity of the lungs and improving the efficiency of breathing. Specifically, when the abdomen is lifted upward, the lungs will expand more easily, so it is easier to inhale more air. At the same time, lifting the abdomen will also reduce the pressure on the abdomen, thus improving the efficiency of breathing.