Bend over, legs are hip width, feet are on the ground, and a folded towel is laid under the navel. Make a fist in the right hand to the west of navel, and make a fist in the left hand. Inhale, tighten the waist and hips, and lift the trunk hard. When exhaling, slowly lower your torso for 5 seconds. When breathing, the body performs relaxation-tension exercise. Repeat 3 times.
Tip: When the abdomen is tightened and stretched, tension will give strength to internal organs. The stomach oppressed by irregular diet will also get a comfortable massage.