Zone 2 Cardio

Low-intensity aerobic training performed just below your aerobic threshold, popularized by experts like Peter Attia and Iñígo San Millán. Boosts mitochondrial health, fat metabolism, endurance, and longevity while serving as the foundation for high-intensity performance.

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Aug 09, 2025

Peter Attia’s Complete Guide to Zone 2 Cardio: Benefits, Training Protocols & How to Find Your Zone

The science-backed cardio sweet spot for fat burning, mitochondrial health, and longevity — from Peter Attia, Iñígo San Millán, and other top endurance experts.

Dr. Bones