20: How a 55-Year-Old Athlete Reversed His Age with AI & Peptides With Tony Medrano Founder & CEO of Longevity.AI

What does it take to build an AI-powered longevity company by using your own body as the lab?In this episode, Marc Longwith sits down with Tony Medrano, CEO and Co-Founder of LongevityPlan.AI, to break down what peptides actually do, which ones touch the testosterone axis, and how AI and genomics are turning generic protocols into something built for one specific body.This conversation covers real numbers, real side effects, and the science behind a 55 year old training for his fourth Ironman.Topics Covered:What LongevityPlan.AI's Digital Twin technology does with wearable data, labs, and geneticsWhy wearables like Oura and Whoop give inconsistent readings, and how to use the data anywayBPC 157 and TB500 for injury repair, and whether site injection actually mattersWhat a peptide actually is, explained through Tony's Lego analogyTesamorelin vs Retatrutide for visceral fat loss and the different mechanisms behind eachThe real side effects at higher GLP-1 doses that don't make it into the marketingWhy protein intake and resistance training determine whether you keep your muscle on any protocolTestosterone, fertility, and the conversation most people are too nervous to have out loudCreatine's role in muscle retention, sleep recovery, and reducing dementia riskThe origin story of BPC 157, tracing back to Pavlov and battlefield medicineWhere AI, genomics, and biotechnology are headed next, including organ regeneration and implantable health monitoringConnect with Tony: Website | LinkedIn | Instagram | YouTube  Connect with Marc:Website | LinkedIn | Instagram | YouTube