The term body mass index we can find in our history in the 19th century. At the time, however, it is renamed, namely the Quetelet Index. In the 20th century (1972) the term BMI was introduced by Ancel Keys. Ancel Keys introduced the BMI chart to determine fat percentage and the ratio between height and weight. At the time, the body mass index was seen as the best way to bring this relationship. Screen

The body mass index became popular because people in the twentieth century became thicker and health problems related to obesity became more frequent.

If we want to calculate your BMI look see today, we have to deal with four scales. Underweight at a BMI of less than 18.5. Normally at values ​​between 18.6 and 24.9. Overweight in an index of 25 to 29.9 and finally obesity at values ​​above 30.

Originally, there are nuances made ​​within the above are the four scales. So there is severely underweight at an index of 15 to 16 Within the heading obesity are three additional classes known. Class 1 (mild obesity) at a BMI of 30 to 35 Class 2 (aplastic obese) at a body mass index of 35 to 40 and the drunken class (very severe) at a BMI of over 40.

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