This podcast episode explores the relationship between exercise and cardiovascular health, with a focus on the aging process. Dr. Benjamin Levine discusses his research on how exercise can reverse heart aging, the effects of bed rest on cardiovascular health, and the optimal exercise dose and timing for maintaining heart health. The episode also covers topics such as the importance of cardiorespiratory fitness, the impact of different types of exercise on heart structure, and the relationship between exercise and blood pressure, hypertension management, and atrial fibrillation risk. Overall, the episode highlights the crucial role of exercise in promoting cardiovascular health and longevity.