Exercise is necessary. Breakfast and lunch must be eaten. You'd better not eat dinner. Control it. The effect of losing weight is obvious. Go to bed early and get up early, and do a series of aerobics in bed before going to bed. For example, when lying in bed, you can lift your legs backwards, lift your legs on your side, knock on your gallbladder (thin thighs) and so on. Exercise is necessary to lose weight. If you want to lose weight, you can only go on a diet, which is too painful.