Walking is the only exercise that can be persisted for life, and it is a safe and moderate exercise. Regular walking can also lower blood pressure; Promote the smooth flow of coronary blood; Increase the content of high density lipoprotein cholesterol in blood; Relieve pain; Strengthen leg strength and prevent osteoporosis; Walking can also promote systemic blood circulation, improve the function of brain and autonomic nervous system, improve the level of intelligence and prevent Alzheimer's disease. Walking is not ordinary walking, but a requirement. For example, relax before walking, exercise your limbs properly, breathe evenly, make your breathing calm and gentle, and then take a leisurely walk. Otherwise, the purpose of walking and exercising will not be achieved. ?