This week, we welcome Dr. Chris Renna back to The AGEIST Podcast to break down one of the most hyped but least understood subjects in modern health: stem cells. Along with providing a clear explanation of how different types of stem cells function, he talks about how they interact with our immune systems and why most “stem cell therapies” people hear about are missing the point. Tune in to learn what actually works, the difference between redeploying vs. reloading stem cells, and the critical importance of starting any anti-aging protocol by age 30. For those of us interested in real longevity—not just the buzzwords—this episode delivers grounded, usable knowledge.

How long will you live? Take our quiz today to find out at ageist.com/longevity-quiz!

Special Thanks to Our Sponsors
Berkeley Life: Boost your energy, support heart health, and improve circulation with Berkeley Life Nitric Oxide. Use the code “AGEIST” at berkeleylife.com for 20% off your first purchase—plus 10 free test strips to track your progress.

Ozlo Sleepbuds: Transform your nights with science-backed wearables designed to help you fall asleep faster, stay asleep longer, and wake up restored. Now through September 30th, save $50 when you use our link: https://ozlosleep.com/?tw_source=ageist&utm_source=ageist&utm_medium=newsletter&utm_campaign=september-2025

Maui Nui: The cleanest, most nutrient-dense red meat out there—high in protein, rich in antioxidants, and ethically harvested. Their new, subscription-only ‘Ohana Reserve Aged Cuts are aged for 14 days to make for unforgettable flavor, plus their to-go venison sticks are perfect for healthy snacking. Right now, Maui Nui is offering a free 12-pack of their jerky sticks with your first order of $79 or more. Just go to mauinuivenison.com/ageist to grab yours.

Key Moments
“Healing proceeds as inflammation recedes.”

“You’re not enhancing your stem cell population—you’re just renting anti-inflammatories for four months.”

“A serious undertaking of anti-aging strategies becomes unquestionably necessary at the age of 30.”

Connect with Dr. Chris Renna
Website (Lifespan Medicine)

Email: [email protected]

Connect with AGEIST

Newsletter

Instagram

Website

LinkedIn

Click Here for the full interview transcript.

Say hi to the AGEIST team!