Experts Say VO2 Max Is the Most Important Health Metric—But Just How Do You Improve It?

High-intensity interval training is important, but coming back to your breath can be crucial to helping you train.
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What Is VO2 Max — and How Can You Improve Yours?

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 ...