Mixed pile driving has a certain effect on stomach, and its method is simple, with small deviation and quick effect. The following are the training methods: Qigong pays attention to "body posture, breathing style and mental activity", that is, "body tone, air tone and heart tone". First, the feet are parallel to the shoulder width, the feet are balanced, the soles of the feet are full, the waist is slightly bent, and the hands are in a circle in front of the ribs. Close your eyes gently and relax from head to toe over and over again, with no distractions in your heart, especially your spirit. Just keep standing. The starting time is about 15 minutes, and then it will be gradually extended according to your physical strength. We must do our best. Collection work is also very important. Hold dantian for a short time when collecting work.