High-intensity interval training is important, but coming back to your breath can be crucial to helping you train.

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A new study, involving nearly 800 older adults, points out the factors most associated with higher VO2 max. Researchers and experts explain how to increase VO2 max, especially as you age. Numerous ...

Alex Hutchinson is a National Magazine Award-winning journalist and Outside’s Sweat Science columnist, covering the latest research on endurance and outdoor sports. New perk: Easily find new routes ...