## Health dangers due to obesity

*These difficulties are associated with obese and overweight adults*

Adults whose Body Mass Index is greater than 25 (

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

*obese*) have a marked increase in risk for various diseases and health conditions, including,:

## Explanation

Body Mass Index Prime is method of using the results of the BMI calculations to quickly and easily rank a person into a category. Eg:

- BMI Prime less than 0.74 = Underweight.
- BMI Prime greater than 0.74 and less than 1.00 = Optimal weight.
- BMI Prime greater than 1 = Overweight

BMI, sometimes known as the Quetelet index, is a measure used to estimate a person's body shape based upon a person' weight and height. It originated in Belguim around the 1840's by Adolphe Quetelet. It is a simple calculation based on the individual's body weight divided by the square of their height.

## Do the sums

How Body Mass Index is worked out

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

## BMI limitations

BMI calcs ignore variation in physical characteristics.

*See wikipedia.org/wiki/Body_mass_index#Limitations for more details*.