I Wore a Glucose Monitor for a Month and Discovered 3 Fueling Mistakes That Were Making My Runs Feel Harder

This piece of tech has taught me how to fuel better.

Is your VO2 max confusing you? Here’s how bodyweight impacts this metric and how to find the right score

VO2 max is more nuanced that you might think – so here’s how to know where your aerobic fitness really stands ...