Looking for quick strategies for building sustainable fitness habits? This week, we revisit a conversation with former firefighter-turned-osteopath and author David Vaux, where he shares wisdom from a lifetime of grit and strength. We all know that muscle mass will greatly improve our healthspan, but the perfect way to build and maintain that strength can be elusive. Get the inside scoop on balancing physical challenges with proper recovery. Find key guidance on staying fit and resilient, no matter your age.

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Key Quotes

“Fast-twitch fibers are the currency of healthy aging.”

“It's not about becoming injured or burnt out; it's about consistency.”

“Strength training is like brushing your teeth: something you just do.”

Connect with David Vaux

Book Stronger: How to Build Strength, The Secret to a Longer, Healthier Life

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Donnie Moss explains how she went from cardio-only routines to strength training at 55 and why she now pushes “move every day” as the baseline for feeling better. She shares a practical approach built around short, doable workouts that help midlife women rebuild consistency without making fitness an all-or-nothing identity. The conversation also gets real about menopause symptoms that can feel scary when nobody has named them, plus how mindset and self-talk can shape follow-through. You’ll leave with simple starting points, a clearer way to measure progress, and the motivation to take one small step today that stacks into momentum.

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Puori Grass Fed Whey Protein: 21g of whey protein per serving from grass-fed cows, with 6g BCAAs and 2.4g leucine, free from hormones, GMOs, and pesticides. Use code AGEIST at puori.com/AGEIST to get 32% off Puori Grass-fed Whey Protein when you start a subscription.

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LMNT Electrolytes: Our #1 electrolytes for optimal hydration, and their new 12oz sparkling cans are officially for sale online! Get a free Sample Pack of LMNT’s most popular drink mix flavors with any purchase by using our link here. Find your favorite LMNT flavor, or share with a friend.

Key Moments

“I started doing my strength training at 55, so a few years back.”

“Fierce is... It’s a mindset.”

“At any age, whether you are 45 or 75, I believe it is never too late.”

Connect with Donnie Moss

Instagram: https://www.instagram.com/fitandfiercewithdonnie/

Website: https://fitandfiercewithdonnie.com/

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Click Here for the full interview transcript.

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Filmmaker David Donnelly joins us to discuss his new documentary Forever Young, an exploration of the rapidly advancing science of longevity. What began as a skeptical investigation into whether the hype around anti-aging breakthroughs was real ultimately revealed a growing body of research focused on extending healthspan and preventing disease. We examine what the science supports today, from the role of prevention and lifestyle to emerging therapies now entering human trials. Along the way, David raises larger questions about purpose, social connection, and how society must adapt as people begin to live longer and healthier lives.

Special Thanks to Our Sponsors

Our Place: The top cookware brand for beautiful, non-toxic, PFA-free pots and pans. Use the code “AGEIST” for 10% off at fromourplace.com.

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.

Fatty15 – C15 is the first essential fatty acid to be discovered In 90 years. Fatty15 is on a mission to replenish your C15 levels and restore your long-term health. Get 15% off their 90-day subscription Starter Kit here or enter code: AGEIST at checkout.

Key Moments

"Normal is not necessarily healthy."

"The number one indicator for how long you live in the United States right now is your zip code."

"We are living through a real revolution when it comes to longevity."

Connect with David Donnelly

Watch the Film – https://www.foreveryoung.film/?via=d

Substack — https://foreveryoungfilm.substack.com/

Instagram — https://www.instagram.com/foreveryoungdoc

X — https://x.com/theagingdoc

FB — https://www.facebook.com/people/Forever-Young-Film/61572955294447/YT — https://www.youtube.com/@ForeverYoung-Film

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