You can run at night, but there are two things need to pay attention to: first, it is not recommended to run within 1h after dinner, because just after dinner, a large amount of blood in the human body is concentrated in the stomach, if running at this time may affect the digestive function of the stomach, and at the same time, due to the large amount of food in the stomach, running at this time is easy to lead to gastric ptosis. Secondly, since the time between running and sleeping is very close, the amount of running activity must be controlled, and if over-fatigued, it is easy to affect the sleep at night. It is generally recommended that the amount of running exercise to achieve mild fatigue not only does not affect sleep, but also may promote sleep, so you can run at night.