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Fitness

Training that actually works — strength, conditioning, running and recovery, broken down without the bro-science.

An Asian man in activewear jogging along a path through a green park, wearing headphones
Training Explainer

Zone 2 cardio: what it is, why it works, and why you're probably doing it too hard

A plain-language explainer on the metabolic state behind the easy-cardio trend, how to find your own Zone 2 without a lab, and the one mistake almost everyone makes.

By The Catalyst Feed · 4 June 2026
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