Body mass index, or BMI for short, is a measure of body weight based on your height. For decades, BMI has been a way to measure whether someone is at a healthy weight. In general, people are ...

Even if you’re a Strava refuser or a smartwatch shunner, the purest of purist runners invariably have an ideal finish time in their heads when they arrive at a start line. If you’re going to hit or go ...