Ever wish you could breathe easier and sustain more intensity mid-workout? You may have overheard the term "VO2 max" at the ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? If you’ve ever been posted up at the squat rack, wondering how heavy you can ...

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 ...