As the saying goes, people get old first. The meridians of the legs are connected with the meridians of the head and hands. Comparatively speaking, the legs are far away from the head, so it is necessary to practice frequently to be comfortable. While practicing legs, supplemented by head, hands and arms exercises, it is easier to dredge meridians and is beneficial to health. Perseverance, hard work, can also achieve the whole body meridian penetration, please adopt the peak of all diseases.