Can targeted peptides enhance your energy, immune response, and even appearance as you age? Dr. Chris Renna, a pioneer in longevity medicine, shares decades of clinical insights and why peptides are rapidly shifting from fringe to foundational. This conversation covers everything from GLP-1 drugs to collagen-stimulating skincare and the crucial role belief plays in health outcomes. For anyone interested in practical, science-backed tools to stay strong, sharp, and resilient over time–this one’s essential.

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

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Maui Nui: The cleanest, most nutrient-dense red meat out there–high in protein, rich in antioxidants, and ethically harvested. Their venison sticks are perfect for healthy snacking on the go and their cuts of meat make for delicious, healthy meals. 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
"Each of you contain the same complexity as a universe."

"Hormones work like music–they're rhythmic, they're symphonic."

"The first 'N' we should care about is the N of one."

Connect with Dr. Renna

Website: Lifespan Medicine

Dr. Renna’s First Appearance on The AGEIST Podcast

Email: info@lifespanmedicine.com

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On this week's episode of The AGEIST Podcast, Stacy London shares her candid, inspiring take on midlife, aging, and why movement–both physical and emotional–is key to thriving. She explains how physical strength transformed her mindset and gave her the courage to embrace risk, explore curiosity, and reclaim joy. Stacy opens up about menopause, people-pleasing, and the emotional recalibration that happens when we stop shrinking ourselves to fit outdated expectations. Tune in to walk away with a fresh understanding of how style, strength, and purpose intersect in the second half of life.

How long will you live? Take our quiz today to find out!

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David Protein: Fuel your body's potential with David Protein, the premium formula that delivers complete amino acid profiles without compromise. Experience the difference that sustainable, clean nutrition makes in your recovery and performance–because your body deserves nothing less than extraordinary. Use our link, and when you buy 4 boxes, you get the 5th box free. Visit: tinyurl.com/weareageist.

Timeline Nutrition: One of our favorite supplements for cell support and mitochondrial function. Listeners can now get 20% off their first Timeline purchase by using the code “AGEIST” at checkout at TimelineNutrition.com/ageist.

LMNT Electrolytes: Our #1 electrolytes for optimal hydration. Get a free 8-count Sample Pack of LMNT’s most popular drink mix flavors with any purchase at our link here. Find your favorite LMNT flavor, or share with a friend.

Key Moments

"The stronger I get, the more I feel like that rock."

"If you want things in your life to change, you're the one who has to change first."

"I don't want people to say, 'You look beautiful.' I want them to say, 'You look capable. You look confident. You look fearless. You look strong.'"

Connect with Stacy
Wear Whatever The F You Want

Instagram: @stacylondonreal

Substack: stacylondon.substack.com

Book: The Truth About Style

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Tune in to hear more from Stacy London on this episode of The AGEIST Podcast or check out thefull interview transcript.

Say hi to the AGEIST team!

Dr. Edythe Heus is revolutionizing how we understand movement, performance, and injury recovery. In this episode, she explains why traditional fitness methods often fail, especially as we age, and introduces her approach through Revolution in Motion. You’ll learn how fascia plays a central role in movement and how instability-based exercises lead to better neurological health and performance. Whether you're an elite athlete or just want to move pain-free, Dr. Heus provides practical, science-backed tools to keep you active and resilient for life.

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

Special Offer from Dr. Heus: Use code AGEIST 50% off the first three months of the Rev6 On Demand Membership

Special Thanks to Our Sponsors

Timeline Nutrition: Our favorite supplement for cell support and mitochondrial function. Listeners can now get 20% off their first Timeline purchase by using the code “AGEIST” at checkout at TimelineNutrition.com/ageist.

David Protein: Fuel your body's potential with David Protein, the premium formula that delivers complete amino acid profiles without compromise. Experience the difference that sustainable, clean nutrition makes in your recovery and performance–because your body deserves nothing less than extraordinary. Use our link, and when you buy 4 boxes, you get the 5th box free. Visit: tinyurl.com/weareageist.

LMNT Electrolytes: Our #1 electrolytes for optimal hydration. Get a free 8-count Sample Pack of LMNT’s most popular drink mix flavors with any purchase at our link here. Find your favorite LMNT flavor, or share with a friend.

Key Moments

"Most people that come to me that are high performers in CrossFit even or weight training, I have to help them integrate because so many things are mental."

"The fascia is almost like its own nervous system and brain."

"I want us all to be able to jump for the rest of our lives… I say I want to be able to jump into my grave."

Connect With Dr. Heus

Rev6

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Click Here for the full interview transcript

Say hi to the AGEIST team!