Not much. According to the "Survey Bulletin of National Fitness Activities", by 20 19, the number of people who regularly run will be about 37.4 million, with a maximum of 50-60 million. Only 4-5% of China 1 100 million adults are runners. Women account for 1.5% in the middle stage, so there are not many girls who have run for five years. Exercise can promote blood circulation, control weight, increase muscle strength, improve sleep and promote metabolism.