Yijinjing is a kind of health-care exercise with both internal and external cultivation. It is said that it was created by Tianzhu and Dharma in the Liang Wudi era. Yijinjing refers to the method of changing bones and muscles. Regular practice of Yijinjing can achieve the effect of preventing and treating diseases and prolonging life. The martial arts novels after Daoguang often mentioned Yijinjing, exaggerating the magical function after practice, which caused some misunderstandings and differences in our understanding and understanding of Yijinjing's function. The editorial board of this book intends to restore the essence of Yijinjing's health-keeping skills, emphasizing its efficacy of preventing and treating diseases and prolonging life, so as to facilitate more health-keeping enthusiasts to learn and master it.

Yijinjing has a large amount of internal exercise and is difficult to move. Generally speaking, full-set exercise is only suitable for young people with good physical strength or patients with chronic diseases. Can significantly improve physical fitness, eliminate diseases and strengthen the body. The external exercises of Yijinjing are mainly to move fingers, palms and upper limbs, which are generally suitable for healthy people and patients with chronic diseases of all ages. Through upper limb exercise, people are lucky, promote blood circulation, relax muscles and affect the whole body.