VO2 max is one of the most powerful indicators of cardiovascular fitness, longevity, and athletic potential—and the good news is, it’s highly trainable. Whether you’re a runner, cyclist, or HYROX ...

Your VO2 max isn’t just a number—it’s a powerful indicator of your fitness, heart health, and even longevity. The higher it is, the better your body can use oxygen to fuel performance and daily life.