This should be measured according to one's own physique. If you eat too much fat every day, drinking 1 hour green tea after meals can decompose body fat. If you exercise 1 hour every day, it is enough. It takes 30 to 40 minutes for the fat to break down. It's not bad to choose another fitness dance. Of course, it will be effective to control your diet a little and eat more fruit once a week. If you have perseverance, you will be satisfied with your achievements.