Some middle-aged and elderly people aged 50-60 years old, retired from their busy jobs, no work pressure, hope to be healthy, busy exercising every day, how much exercise can help their health? Can it prolong life? (Is there any correlation between a turtle being stationary every day and a hare running every day and longevity?) It must be different from one person to another. Some of them, especially female patients, are caused by excessive exercise, some of them dance for 1-2 hours at night; some of them walk fast for 10-20 kilometers a day, but their symptoms disappear after they reduce their activities. A healthy body depends on good lifestyle habits, a reasonable diet (foreign studies have shown that a 40% reduction in eating can significantly extend life expectancy), and reasonable exercise on a regular basis, so keep your mouth shut and your legs open. Proper exercise is good for health, but not excessive exercise, the amount of exercise varies from person to person, excessive exercise will damage the bones and joints and muscles, exercise must be the next day not fatigue, not uncomfortable prevail. People with lower limb bone and joint diseases (especially knee, ankle and foot disorders) and venous insufficiency of the lower limbs are not suitable for excessive exercise.