## Health risks from being overweight

*These dangers are associated with overweight and obese adults*

Adults with a BMI of greater than 25 (

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

*obese*) have an increased risk for a number of diseases and health conditions, including,:

## BMI History

Devised all the way back in way back in 1830, BMI is a single figure used to as a way of measuring a person's body shape. Put simply, it is calculated by dividing the body's weight by the square of their height. Eg: Kilograms: weight, divided by Metres (Meters): height. The BMI, also 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. ## The simple maths

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 categories are generally regarded as a satisfactory tool for measuring whether sedentary individuals are underweight, overweight or obese with various exceptions, such as: athletes, children, the elderly, and the infirm.

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