The current internationally used formula for calculating adult weight is: male standard weight = (height cm-100) x 0.9 (kg), female standard weight = (height cm-100) x 0.9 (kg) – 2.5 (kg). The above is just one of the many ways to calculate. However, it is not the case that weight within the standard or normal weight range is healthy, as this indicator does not reflect the amount or distribution of body fat. Skinfold thickness measures subcutaneous fat, which accumulates in different areas and causes different health effects. The fat that surrounds the internal organs is called visceral fat and accumulates mainly in the abdomen. Waist circumference and waist-to-hip ratio are more indicative of the amount of abdominal fat, and increased abdominal fat is an independent risk factor for high blood pressure and diabetes in people who do not have a high body weight. Studies have shown that women who lose weight significantly from the age of 50 are much more likely to suffer fractures, especially hip fractures. And thin people have a high incidence of visceral prolapse, most notably gastroptosis. Some data show that among the elderly, those who are 10% to 20% over standard weight have a lower mortality rate. It is recommended that we do not focus on the pursuit of weight figures of “health” or thin body “beauty”, a reasonable diet, appropriate exercise and reasonable muscle content, fat content of the body to bring health, is the real beauty.