abdominal respiration
Is to pay attention to your breathing as much as possible. The abdomen is full when inhaling and inward when exhaling.
There is also a simple enhanced version: on an empty stomach, you can stand with your legs shoulder-width, slightly bend your legs, exhale as far as possible, deflate your abdomen as much as possible, and lift your breath upwards; Hold on for a while, the anus is retracted inward, and the chin is close to the sternum. Inhale slowly and your lower abdomen will return to normal. This action is very tiring. Just do it three times at first, and then you can add it to five times.
If you do it often, it will be less and less difficult to take in the lower abdomen, the internal organs will be well massaged, the dirty things in the intestines will be discharged from the body, and the digestive function will become very good, without constipation or insomnia.
Your waist will be thinner and your skin will be improved, that is, the place where your hips should be convex and backward will not be blurred at all.