The ONLY Cardio Workout You Need for a Long Life..

What Is Cardio? And Why You’re Probably Doing It Wrong The Science of Walking, Heart Rate, VO2 Max & Zone 2 Most people think cardio = running. But the truth is, cardio isn’t about sweating, it’s about oxygen. This episode busts myths and decodes: What exactly is cardio and why it’s more about lungs and heart than your legs How your heart rate and breathing define your fitness Why your heart efficiency automatically declines with age What Zone 2 cardio is and why it’s the foundation of longevity What VO2 Max really means and why it’s the best predictor of how long you’ll live We cover: → The real meaning of "cardiovascular fitness" → Why sports don’t count as Zone 2 training → Why slow cardio makes you fitter, not just fast running → How to calculate your own VO2 Max (without spending money) → The difference between efficiency and capacity Whether you’re a beginner or an athlete, this episode gives you the most practical, science-backed roadmap to fix your cardio game and build a younger, stronger heart. Hit play. And let your heart thank you.