My stomach and ass are big, because I often sit on a bench or sofa and watch TV. It's caused by playing computer. Remember to do less in the future Sitting for a long time will accumulate fat on the stomach and buttocks because it can't be digested, so people look a little fat and can do some aerobic exercise, such as jogging. Skipping rope and other exercises can help you lose excess fat. Specifically, you can search online and then summarize it. Set yourself a goal and stick to it. . .