What if longevity wasn't just about extending lifespan, but expanding the years you live with strength, clarity, and vitality? In this episode, I sit down with Dr. Christopher Keroack, an internist who brings a powerful clinical lens to the science of aging well.

 

Our conversation starts with a question I believe every patient should ask: Are we adding years to life, or adding life to years? Dr. Keroack walks me through how medicine has shifted from simply preventing death to actively preserving vitality, and why the distinction between lifespan and healthspan is now more important than ever.

We dive into the 12 hallmarks of aging, mitochondrial health, synolytics for clearing zombie cells, and the emerging role of peptide therapy in longevity. We also explore the practical metrics that matter most — VO2 max, muscle mass, body composition, blood pressure regulation — and how these biomarkers shape the trajectory of aging.

What I appreciate about Dr. Keroack's perspective is his balance. He's grounded in internal medicine, understands genetics and environmental triggers, and still champions lifestyle as the foundation of long-term wellness. From hormone optimization to the nuanced use of antibiotics, we cover the strategies and controversies shaping modern longevity medicine.

This episode is for anyone who wants to understand the science behind staying youthful and take actionable control of their health trajectory.