Bulletproof Radio

Your biological age can drop by over three years in just eight weeks, and the tools to do it are already in your kitchen. This episode breaks down the cutting-edge science of methylation, polyphenols, Yamanaka mimetics, and epigenetic reprogramming that is rewriting what we know about anti-aging, longevity, and human performance.  -Watch this episode on YouTube for the full video experience: https://www.youtube.com/@DaveAspreyBPR Host Dave Asprey sits down with Dr. Kara Fitzgerald, ND, IFMCP, a leading voice in functional medicine and epigenetic aging research. Her award-winning clinical studies published in Aging (2021, 2023, and 2025) proved that targeted diet and lifestyle interventions can measurably reverse biological age on validated epigenetic clocks. She is the author of Younger You, an IFM faculty member and Certified Practitioner, and one of the most rigorously credentialed researchers working at the intersection of functional medicine, nutrition, and lon