Standard weight is mainly calculated by combining height, and there are many specific formulas for calculating it, among which the more common one is height (cm)-105, and also the BMI index can be used to determine the standard weight. Internationally used standard weight formula for height (cm) -105, the actual weight within ± 10% is normal, more than 10% of the standard weight is overweight, more than 20% is obese, and less than 10% of the standard weight is thin, less than 20% more than the existence of wasting problems. In addition, you can also measure your weight through the BMI index, which is weight (kg) divided by the square of your height (㎡). The normal BMI is 18.5~24, if the actual index is less than 18.5 it means underweight, if it is between 24~28, then it is overweight, and greater than 28 is obese. It is recommended to have a balanced diet, timely supplementation of nutrients, pay attention to rest, try not to stay up late, and appropriate outdoor exercise, so as to maintain a standard weight.