The fatness of the human body is determined by the fat in the body. Fat in the human body goes through four links, intake-synthesis-transportation-utilization, intake from food, synthesis of fat suitable for the body through the liver, and transportation to different parts of the body for accumulation and absorption. Any one of these four links will have an impact on body weight.

The main way to lose weight is to eat less, eat more meals and exercise more. Eat a compound food with low sugar, low fat and low fresh water, mainly vegetarian, but with balanced nutrition and aerobic exercise. Common aerobic exercises include: walking, brisk walking, jogging, race walking, skating, long-distance swimming, cycling, playing Tai Ji Chuan, fitness dancing, skipping rope/doing rhythmic exercises, basketball, football and other ball games.

To lose weight scientifically, it is suggested to have a physical examination first to see what the body's internal fat rate, fat rate, metabolic rate and body mass index are, what the standard value should be, and what the body size is, such as chest circumference, waist circumference, hip circumference, big arm circumference, etc., so as to make a purposeful and targeted weight loss plan. It is suggested to remove blood vessels and intestinal garbage, reduce internal fat, and naturally lose external fat after reducing internal fat. Combining reasonable diet, moderate exercise, adequate sleep and good living habits will not rebound.