This podcast episode explores the limitations of using BMI as a measurement of health and introduces alternative tools to measure body composition accurately. It emphasizes the importance of tracking body composition, particularly muscle gain and body fat, for overall health and longevity. The episode discusses various options for calculating body composition, including MRIs, DEXA scans, and bioelectrical impedance analysis devices. It highlights the significance of focusing on personal trends and improvements over time rather than adhering to external benchmarks. Overall, the episode encourages listeners to shift their focus from scale weight to body composition and provides insights into the tools and methods available for this purpose.