After eating dinner generally speaking, it takes at least 2 hours before it is suitable for exercise, because the digestion of food in the stomach takes time, mixed food is including meat and vegetables, plus the main food these foods in the stomach can be emptied generally takes 4-6 hours, the digestion process takes a certain amount of time, if we go to exercise immediately after the meal, then the gastrointestinal tract will be ischemic. The blood goes to the skeletal muscles, so it may cause symptoms of indigestion. In patients with GERD, if you move immediately after eating dinner, it can cause an aggravation of reflux. Therefore, it is better for digestion to go back to activity more than 2 hours after dinner.