Usually the best time for running is 30 minutes after the sun comes out in the morning and 1 hour after breakfast; the best time for running in the evening is 19:00-20:30. Although clinical research has been done in this area, the specific time for running should be decided according to personal constitution and biological clock, and it cannot be generalized. In the morning, the plants are photosynthesizing, the air is fresh and the oxygen content is high, which is suitable for jogging. If fast running is carried out, it should be done 2 hours after breakfast to avoid being unfavorable to digestion. Night 19:00-20:30 is a relatively slow time period of the body’s basal metabolic rate, this time period for jogging can improve the body’s basal metabolic rate, which is conducive to weight loss, while sleep 1-2 hours after appropriate running at night, can effectively promote sleep, which is conducive to improving sleep phytoconstituent dysfunction. If you run at night after 10 o’clock, it will affect your sleep and lead to no spirit on the second day, affecting normal work and study. In addition, running needs to be moderate, do not over-exercise, so as not to cause a decrease in immunity, while excessive fatigue after running will also increase the risk of sports injuries.