VO2 max is a measure of the maximum amount of oxygen the body can handle during intense exercise. A doctor explains how it's measured and strategies to improve it.

Maybe your smartwatch has been telling you your VO2 max for a while now, but you’re not sure how accurate it is. Or maybe you’ve recently been targeted by social media ads for fancy running labs ...

It is no secret that cyclists are obsessed with numbers. Everything from power output and heart rate, to hydration, blood glucose levels, and sleep tracking. There are a million different devices that ...