Obesity is due to the accumulation of too many calories that cannot be consumed. Usually, we should refrain from eating, don't overeat, eat regularly, don't eat snacks at other times, and do more exercise (two hours after meals), especially strenuous exercise (such as playing football and running). For example, Tai Chi, Square Dance/Yangko and other old-age dances are too small, and walking slowly is useless for obesity.