First, you can't run immediately after a meal.
Because after dinner, in order to digest and absorb as soon as possible, the body will make the blood flow faster and concentrate near the digestive system. If you exercise at this time, it will lead to blood "transfer" to all parts of the body, which is not conducive to digestion, and even lead to indigestion and even gastrointestinal diseases. Although this is well known, I still want to remind you that it is not suitable for activities just after eating, and it is best not to take even a slight walk immediately.
Second, you should take a rest after dinner before exercising.
I suggest having a rest for at least half an hour. At this time, the food is basically digested, and the blood flow becomes gentle and slowly extends to the whole body. After half an hour, you can do light outdoor sports, such as walking and playing table tennis. If you want to do a relatively strenuous running exercise, I suggest waiting for at least an hour after dinner. At this time, the task of gastrointestinal digestion is basically over, gastrointestinal activity tends to be flat, energy supplies blood, and you will be more energetic when you start running.
In addition, friends who plan to run after meals are advised not to eat too much. Generally speaking, six minutes is enough. If you eat too much, the digestive ability of your stomach will decrease obviously. Even if you rest for two hours, it may be difficult for you to run, and your stomach will be seriously hurt.