When it is necessary to compare and analyze the influence of a person's weight on the health of people with different heights, the body mass index value is a neutral and reliable indicator.
The concept of "height and body mass index" was first put forward by Belgian generalist kettler in the middle of19th century. It is defined as follows:
W = weight in kilograms;
H = height in meters.
Body mass index (BMI) = weight (kg) ÷ height? (m).
Extended data adult body mass index value:
Light weight: body mass index
Healthy weight: 18.5
Overweight: 24
Obesity: 28
The ideal body mass index is 22.
The above formula for calculating body mass index is also applicable to people aged 2-20, but their overweight and body mass index are not determined by a fixed body mass index value. This is because children in different regions grow at different speeds, and it is easy to make wrong judgments if a fixed value is used.
Baidu Encyclopedia-Body Mass Index Value