#379 - AMA #79: A guide to cardiorespiratory training at any fitness level to improve healthspan, lifespan, and long-term independence

This podcast episode focuses on cardiorespiratory fitness, specifically zone 2 and VO2 max, as key modifiable predictors of healthspan and lifespan. It addresses how to measure, track, and improve these metrics through training, considering time constraints, training experience, and age. The discussion clarifies the roles of fat oxidation, mitochondria, and lactate in exercise, and it emphasizes the importance of volume in driving adaptation, especially in zone 2. It also explores the debate around zone 2's unique benefits versus high-intensity training, concluding that zone 2 is practical for sustained, long-term fitness due to its lower physiological cost and better recoverability.