The formula for calculating standard weight based on height is to subtract 105 from height, and the number obtained is the standard weight, so the standard weight for 160cm is 160cm-105 = 55kg. standard weight is a guide for people to control their weight, and it can fluctuate up or down by 10%, that is, between 50-60kg is normal. Body mass index can also be calculated based on the actual weight and height, using the weight minus the square of the height to calculate the body mass index to assess. If the weight is overweight, obese, or underweight, are abnormal, to understand whether there are pathological factors. 1, underweight: If it is less than 50kg, or the calculated body mass index is less than 18.5, to consider whether the body is in a state of high metabolism, high consumption, or malnutrition, such as patients with hyperthyroidism, patients with tuberculosis, patients with tumor consumption, and Patients who are in long-term nutritional intake deficiency and anorexia will have a standard weight much lower than normal; 2. Overweight and obese: usually the actual weight of overweight and obese patients will be higher than the standard weight, that is, greater than 60 kg. If the body mass index is calculated to a value greater than 24, it also means that it belongs to the state of overweight and obesity. In the diet to eat more coarse fiber light food, exercise recommended a combination of aerobic and anaerobic exercise to help control weight. Of course, there may also be pathological factors, such as adrenal gland disease leading to excessive secretion of glucocorticoids, and mucinous edema in patients with hypothyroidism, which can also lead to overweight conditions. It should be noted that some people, although the actual weight is higher than the standard weight, but is a normal state, such as long-term engagement in the exercise of bodybuilders. Bodybuilders have relatively more muscle content, so there is a gap between standard weight and actual weight, mainly because of more muscle content, so it is not an abnormal state.