There Are Better Ways to Measure Body Fat Than BMI 0

We’re using an outdated, inaccurate system. Every January, fat’s in the crosshairs of health columnists, fitness magazines, and desperate Americans. This year, PopSci looks at the macronutrient beyond its most negative associations. What’s fat good for? How do we get it to go where we want it to? Where does it wander when it’s lost? This,…