This easy test can help you get a gauge on your VO2 max—without a watch.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Ever wish you could breathe easier and sustain more intensity mid-workout? You may have overheard the ...

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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 ...