First, simply rely on dieting to lose weight without increasing physical exercise. After dieting for a period of time, the body's basal metabolic rate will drop. Once the same food intake is restored or maintained, the weight will grow back. It is because after a period of hunger, the body has a self-protection mechanism to prevent further weight loss. Once energy intake is restored, energy will be quickly converted into glycogen and fat, so the existing human beings can survive famine again and again in the long history.
Second, the way of dieting is unscientific. For example, some people adopt a diet that does not eat dinner or only eats vegetables, which will not only rebound but also lead to malnutrition.
After losing weight, continue to maintain exercise and eating habits during weight loss, so as not to cause weight rebound. You may do long-distance running, badminton, table tennis, walking and other sports during weight loss. You have good eating habits and eating rules during weight loss. If you continue to adhere to the above good exercise and eating habits after losing weight, your weight will not rebound.