Linda Kelly is 80 years old. She's as fit as someone decades younger and has an elite-level VO₂ max. Her easy daily habits ...

On TikTok, VO2 max is going viral as the key to improving your endurance during a workout. In short, you can think of this metric as the maximum amount of oxygen your body uses during exercise – V ...

The marathon world-record holder for the 75-79 age category didn’t start running until she was 35: “You can start anytime, and you just keep moving forward.” At 77, Jeannie Rice isn’t even close to ...

VO2 max, the measure of how much oxygen the body consumes during exercise, has become a ubiquitous tool for professional athletes, but health experts increasingly say it's a measurement worthy of ...

I’m not surprised that Garmin did well, but I am surprised by some of the watches at the bottom of the list. Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal ...

When it comes to understanding your fitness and overall health, VO2 max is often heralded as the most important metric. 🏃🏻‍♀️For everything you need to know about this trendy and telling metric, ...