First, lie flat on the ground, bend your knees so that the angle between your thighs and calves is about 45 degrees. Then, put one hand on your stomach and the other hand on your lower back. Then inhale through your nose and hold it for 3 seconds, then open your mouth and exhale through your mouth and hold it for 6 seconds. In the process of exhaling, the hand placed on the stomach should be pressed down slightly until the hand placed on the back feels the back pressed down. Finally, exhale through the nose, and at the same time put your hands on your stomach and massage from outside to inside. This is repeated about 5 times.
Abdominal breathing can provide enough oxygen for blood, promote blood circulation, massage can also promote the stomach and intestines, and promote the discharge of intestinal waste.