BMI, or Body Mass Index, has long been held as the standard for measuring our weight in relation to our height. The score we get tells us if we are underweight, normal weight, overweight, or obese.
Alternately, body composition is a different, more comprehensive way to understand the body -- not just whether you are "normal" or "overweight."
Let's take a look at these two measurements, and why body composition matters more if you're trying to be healthy.