Beyond the Hype: Muscle Physiology Research Challenges the Supremacy of Zone 2 Cardio
August 30, 2026 For years, the wellness and fitness landscapes have been dominated by a single, unwavering gospel: Zone 2 cardio is the non-negotiable holy grail of longevity, metabolic health, and aerobic development. Enthusiasts have spent countless hours strapped to heart rate monitors, meticulously keeping their exertion low enough to maintain a conversation, all under…
