In the fitness world, Zone 2 training—steady, conversational-pace exercise like a brisk walk or easy jog—gets a lot of buzz for boosting mitochondrial health (your cells’ energy factories) and fat oxidation (burning fat for fuel). But as recent research shows, including a 2025 narrative review in Sports Medicine, pure Zone 2 often falls short of … Continue reading Unlocking Metabolic Magic: The Simple Logic of Progressing Zone 2 with Intermittent Challenges