The podcast episodes discuss the concept of 'muscle span' - the years someone has healthy skeletal muscle, across youth, midlife and older ages. Sarcopenia, the age-related loss of muscle mass and strength, is a key issue addressed, and preventing it is a major component of maximizing muscle span.

In Episode 64 of The Ultimate Human with Gary Brecka, Dr. Gabrielle Lyon provides practical advice on resistance training, optimal protein intake, and nutrient density to build and maintain muscle throughout life. Similarly, in Episode 136 of The Dr. Tyna Show, Dr. Tina Moore emphasizes the importance of strength training and building muscle mass for achieving metabolic health, insulin sensitivity, and overall wellness.

These episodes highlight the interconnectedness of sarcopenia, muscle mass, and overall health, and the importance of proactive steps to maintain muscle throughout the aging process.