At present, the average life expectancy of human beings on earth is over 70 years. At present, the average age of women in China is 67.8, while that of men is low. According to the report of the World Health Organization, the life span of human beings should be 100 to 175 years. Experts put forward the slogan "Never die of ignorance", calling on human beings to pay attention to health care, live a healthy life and develop a good lifestyle in their lifetime. If a person does not exercise for more than ten years-that is, long-term exercise, which is not accidental exercise-the average life expectancy will be reduced by about 5%, that is to say, he will live nearly five years less than normal people. If a person does not exercise for more than 20 years, he will probably live ten years less.