There is no specific rule on whether to eat breakfast before running in the morning, whether to eat breakfast according to their own situation to decide. Some people are too hungry before running in the morning, easy to hypoglycemia or have the habit of eating breakfast can eat breakfast and then run, but it is recommended to eat some nutritious, light food, such as eggs, soybean milk, steamed bread, fruits, etc., in moderation, should not eat too much, eat breakfast about 30 minutes after you can start sports. If you are accustomed to eating breakfast after running in the morning is also possible, it is recommended to rest 30 minutes after running in the morning before eating, breakfast should be nutritious and healthy. Before running in the morning, we should pay attention to do a good job of warming up, to avoid muscle strain, choose a safe and clean environment for running in the morning, as far as possible away from the road, the place where there are a lot of vehicles. Exercise time should vary from person to person, healthy people jogging for about 40 minutes is appropriate, the intensity should not be too large.