Of all the metrics you can use to gauge overall health and fitness, VO2 max stands among the very top. This objective measurement has links to heart health, longevity, and more. Heres everything you ...

There are a lot of things you should track as you age as a runner: your mileage, your heart rate, and your sleep quality to name a few. But are you paying attention to your VO₂ max? Scientifically ...