I. Introduction:
1, body mass index (BMI), referred to as BMI, is a commonly used international standard to measure obesity and health. Body mass index was first put forward by Belgian generalist kettler in the middle of19th century.
2. Body mass index (BMI) is a commonly used index to measure obesity and health in the world. The normal body mass index is between 20 and 25. If it exceeds 25, it means overweight, and if it exceeds 30, it means obesity. Body mass index (BMI) can not be used as the only criterion for diagnosing obesity, but should be comprehensively evaluated with waist circumference, body fat rate and muscle mass.
Second, the significance and value of body mass index:
1, body mass index can help us know whether we are within the normal weight range. If the body mass index is high, it means that we are at risk of chronic diseases such as obesity, diabetes and hypertension, and we need to take timely measures to intervene.
2. If the body mass index is low, it means that our health may not be very good, and we need to strengthen nutrition and exercise to improve it. In addition, body mass index can also be used as an auxiliary diagnostic index in clinic, such as judging whether obesity is accompanied by other diseases.
Third, the limitations of body mass index:
1, body mass index also has some limitations, because it only considers two factors, weight and height, and cannot consider more factors when evaluating personal health, such as muscle mass, fat distribution, bone density and so on.
2. The body mass index is not suitable for everyone, such as athletes and the elderly. At the same time, at the same level of body mass index, people of different races have different risks of related diseases, which also shows the limitations of body mass index.
Fourth, maintain a normal body mass index:
1. If our body mass index is too high or too low, we should take corresponding measures to adjust it. It is suggested that diet adjustment and reasonable exercise should be combined to lose weight or gain weight.
2. To lose weight, we should pay attention to scientific diet, gradually lose weight, pay more attention to gradually increase calorie intake and reasonably supplement nutrition. In addition, it is very necessary to have regular physical examination and evaluation to master the changing trend of our body mass index.