JulieB wrote:
> BMI = your weight in kg/(your height in cm)squared

BMI is a terrible indication of relative weight. It does not take body
fat into account, although you can usually tell if a high BMI is healthy
or not just by looking at the person.

My other issue is that weight goes up as you grow in three dimensions,
yet the formula uses height squared. Weight goes up faster than height,
so tall people tend to have high BMIs despite having a healthy weight.
If the function used height cubed or height squared multiplied by
another measurement it might be more accurate.

--
John Gaughan
http://www.johngaughan.net/