30 minutes after a meal can exercise and running, usually not recommended immediately after eating exercise, such as immediately after eating exercise has the following disadvantages: First, it will lead to food absorption and indigestion, in the long run will cause abdominal pain, diarrhea, nausea, vomiting and anorexia and other symptoms of gastrointestinal discomfort. Secondly, it can cause chronic appendicitis and easily induce acute appendicitis. After eating, if the appendix area is open, vigorous exercise will make the food have chyme and bacteria containing part of the appendix sink, so it will induce and lead to appendicitis. Finally, exercise immediately after a meal can also lead to transient dizziness, vertigo, and cerebrovascular insufficiency of blood supply. Therefore, it is recommended that light exercise can be done 30 minutes after meals, but running should not be done immediately, and slow running should be done only after 10-15 minutes of light aerobic exercise.