"Exercise" and "health" are two different concepts, but they are internally related. The word "physical education" has a clear broad and narrow interpretation in the book "School Physical Education". At the end of its explanation, it means to enhance physical fitness and promote health through physical exercise. The definition of "health" was put forward by the World Health Organization. As we all know, there are many factors that affect health, such as heredity, natural environment, education, living habits, personality psychology, nutrition, physical exercise, social and cultural environment and so on. Among many factors, physical exercise is the most positive factor to promote physical health. Scientific physical exercise can not only enhance the immune function of various organ systems, but also comprehensively promote the metabolism and normal development of the body. Moreover, it can temper the will, cultivate self-confidence, improve adaptability, cultivate good temperament, and enhance social and adaptability. By quoting the fact that "taking part in physical exercise helps to improve health and reduce the occurrence of diseases", we can affirm the relationship between physical exercise and health. The existence of physical exercise is the need of physical health, and physical health itself is manifested as the state of physical exercise. Physical exercise or physical exercise is another form of physical health.