The correct method of abdominal breathing is to choose the right position and to shut up and inhale through the nose. 1. Choose the right position: different positions have different attention factors. In the standing position, the upper body should be kept upright, shoulders should be relaxed, and the distance between the feet should be the same as the width of the hips. In the sitting position, the upper body should be kept upright, slightly leaning forward, legs in a bent state, and keep the natural sagging, so that the calves and the ground to maintain a perpendicular state, and to put the hands on the thighs. In the supine position, lie flat on the bed and keep your upper arms naturally straight. 2. Shut up and inhale through the nose: hold your breath for 3 to 10 seconds after deep inhalation to keep your abdominal muscles under tension, then exhale the breath to keep the inhalation and exhalation at a ratio of 1:2 or 1:3. It is best to do this on an empty stomach and two hours after a meal. Note: If symptoms such as dizziness occur during abdominal breathing, terminate abdominal breathing.