## Health dangers due to obesity

*These dangers are identified with overweight and obese adults*

Adults that have a BMI of greater than 25 (

*overweight*) or whose BMI is greater than 30 (

*obese*) have an intensified risk for many diseases and health conditions, including,:

## Fundamentals

BMI Prime is simple way of defining a single figure that is not immedieately related to any other units of measurement, but which can quickly and easily rank a person into a category. :Eg:

- BMI Prime < 0.74 = Underweight
- BMI Prime > 0.74 and < 1.00 = Optimal weight.
- BMI Prime > 1 = Overweight

b m i Prime is a variation of the Quetelet index. Put simply, if you have a Prime of less than 0.74, you are underweight. If your prime is more than 0.74 and less than 1.00, your weight is ideal. If your bmi prime is more than 1 you are defined as being overweight.

## The formula

BMI is defined by the following formula

- BMI = weight(kilograms) / height
^{2} (metres^{2}) (Metric Units) - BMI = 703 . weight(pounds) / height
^{2} (inches^{2}) (Imperial Units)

## BMI limitations

BMI is proportional to the mass and inversely proportional to the square of the height. So, if all body dimensions double, and mass scales naturally with the cube of the height, then BMI doubles instead of remaining the same. This results in taller people having a reported BMI that is uncharacteristically high, compared to their actual body fat levels.

*See wikipedia.org/wiki/Body_mass_index#Limitationsinfomation*.