It is not recommended to get up early for running, because after a night of digestion in the morning, the energy in the body has been consumed almost, and there is no supply of carbohydrates. Running at this time is prone to dizziness and other symptoms. It is suggested to do physical exercise one hour after dinner in the evening, which is not only beneficial to lose weight, but also to enhance physical fitness.

After a night's sleep, the cells have not yet reached the active state; High blood concentration and low carbohydrate (commonly known as sugar) content, coupled with exercise, will increase the burden on the body;

The best physical condition of human body in a day is: 9- 10, 4-5 in the afternoon and 7-9 in the evening; The weakest state is about 4-7 am, 1-3 am, 1-2 am. Therefore, it is suggested to change the running time to evening, and the effect is ideal.