Eating food in the stomach requires a process of digestion. All the blood in the body should be concentrated around the stomach to participate in digestion. At this point, the gastrointestinal tract should be given one hour to digest and absorb. If you do physical exercise rashly, you will mobilize all organs of the whole body to participate, while ignoring gastrointestinal digestion? It stopped. Over time, it will cause gastrointestinal discomfort, and gastritis and stomach diseases will come to you.