Have you ever wondered how your BMI, or Body Mass index, accounts for changes in height? Well, according to Oxford mathematician, Nick Trefethen, it does not. Trefethen does not believe our current BMI calculator takes into account that we live in a 3D world, saying that our current BMI calculator does not alternate for changes in height. Meaning the calculator does not show that tall people call take up more space without being fat.

Unfortunately, the BMI calculator is still flawed since it does not take fat percentage into account either. This means that a person who is naturally thin but never works out could be seen as healthy and a performance athlete can still be seen as overweight or obese.

Current BMI standards say that a healthy range is between 18.5-24.4, overweight is 25-29.9, and 30+ is obese. The main change that Trefethen's new calculator does is make alterations according to height. With the new BMI calculator he created, height is not measured on a linear scale alone. This change is good news for those who are taller since their BMI just might go down; but, shorter people will likely have an increased BMI.

My BMI went up about 0.5 from it's usually old BMI standard to the new Trefethen alternative. Did yours change?