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PODCAST

AGEIST

The AGEIST podcast is where we rewrite life after 50. Hosted by David Stewart, founder of AGEIST and Super Age, we talk with extraordinary people—scientists, creatives, and thinkers—about living vibrantly in your 50s, 60s, 70s and beyond. From longevity science to emotional well-being, fitness to purpose, we explore the tools and mindsets that help us stay curious, energized, and deeply engaged with life. This isn’t about aging gracefully—it’s about living boldly.

education self-improvement

All Episodes

47:21

Jill Czarnik: Microplastics and How to Remove Them

AGEIST ·

2025/02/06

Are the everyday products in our homes quietly harming us? Jill Czarnik, co-founder of The Tribalist, explains how microplastics, unregulated chemicals, and overconsumption are impacting our health in ways we often overlook. She shares practical, manageable steps for reducing exposure, from water filtration to simplifying personal care routines. This episode is a must-listen for anyone looking to take control of their environment and make choices that support long-term well-being. How long ...

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45:40

Neil Markey: From Spec Ops to Psychedelics for Healing

AGEIST ·

2025/01/30

Neil Markey, co-founder of Beckley Retreats, shares his journey from Army Ranger to leading advocate for psychedelics and mindfulness. Drawing from his own struggles with trauma and burnout in the service, Neil explains how meditation and professionally guided psychedelic experiences transformed his life. We discuss the benefits of neuroplasticity, emphasizing how intentional habits after transformative experiences can rewire our brains for long-term change. Whether you're seeking healing, se...

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73:56

Michelle MacDonald Proves It’s Never Too Late

AGEIST ·

2025/01/23

Michelle MacDonald, coach and daughter of Joan MacDonald (a.k.a. Train With Joan), is a fitness expert and the founder of Wonder Woman Coaching. This week, she joins us to challenge outdated narratives about aging and health. Michelle explains why muscle loss isn’t inevitable and how lifestyle choices shape physical and mental wellness. She shares the transformative story of coaching her mother, Joan, from obesity to thriving health, emphasizing the importance of habits over quick fixes. Tune...

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81:35

Laura Hof Shares Tools for Mental Flexibility

AGEIST ·

2025/01/16

Laura Hof, daughter of Wim Hof, brings transformative insights into the role of beliefs, stress management, and neuroplasticity in shaping our lives. She explains how the reticular activating system (RAS) filters our experiences based on belief systems, emphasizing the importance of consciously shifting these filters to unlock new possibilities. Through techniques like controlled stress exposure, often in the form of cold plunge, and breathing exercises, Laura shares actionable methods to enh...

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75:27

Dr. Joy Hussain: Thermo-Flexibility Is Real

AGEIST ·

2025/01/09

This week, Dr. Joy Hussain shares new insights from her sauna therapy research and its transformative potential for health. Think of heat/cold exposure as training on par with exercise or brain training. Learn how sweating impacts metabolic health, the connection between hormones and thermoregulation, and how sauna use could alleviate menopause symptoms. Dr. Hussain discusses gender differences in heat tolerance, emerging research on sweat composition, and practical ways to enhance resilience...

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57:56

Dr. Nicole Bijlsma on Hidden Home Toxic Hazards

AGEIST ·

2025/01/02

How much do you know about your home’s impact on your health? Dr. Nicole Bijlsma, environmental health expert and building biologist, uncovers the often-overlooked hazards lurking in our everyday environments. From the risks of mold and dust to the surprising health effects of electromagnetic fields (EMFs), she offers actionable advice to create safer, healthier spaces. Learn why a simple change like removing shoes indoors or using fragrance-free cleaning products can make a profound differen...

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55:16

Tina Frey: Meditation Like You’ve Never Seen

AGEIST ·

2024/12/19

“When people left the orb in tears, I knew I’d created something that truly touched their souls.”- Tina FreyThe prolific artist’s latest groundbreaking project has redefined how meditation can look and feel. By combining frequency-based vibration, guided meditations, and her own immersive vision, Tina's comforting, five-foot structure helps people access peace, love, and joy in just 15 minutes. This week, we chat with the artist and entrepreneur, whose meditation orb installation blends art, ...

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56:53

Dr. Rachel Allen Debunks Ketamine Myths

AGEIST ·

2024/12/12

This week’s episode is a rerun of our captivating conversation with Dr. Rachel Allen, an anesthesiologist and ketamine therapy pioneer. Dr. Allen discusses how ketamine—a medication she has used for decades in her practice—has evolved into a groundbreaking treatment for depression, PTSD, and anxiety. She shares deeply personal patient stories and explains the science behind the “snowglobe effect,” which helps reset the brain’s neural pathways. Tune in to learn how ketamine therapy is changing...

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50:23

Dr. Cindy Tsai: Healing Beyond Medicine

AGEIST ·

2024/12/04

Dr. Cindy Tsai, a double board-certified physician in internal and integrative medicine, brings a transformative perspective to health and wellness. Drawing from her own journey through a rare autoimmune condition, Dr. Tsai champions a holistic approach that integrates Western medicine with complementary therapies like energy healing and mindfulness. In this episode, she explains why understanding the whole person—not just their lab results—is critical for optimal health. Whether discussing p...

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51:48

Ron Kastner: What’s Your “Why” for Life?

AGEIST ·

2024/11/27

Ron Kastner’s story highlights the transformative power of finding your “why.” In this episode, he shares how a single moment of clarity—recognizing his desire to be present for his daughters—sparked a complete overhaul of his lifestyle. Ron explains why defining a personal purpose is essential for sustaining habits that support health and vitality, especially as we age. With actionable tips on exercise, nutrition, and mindset, this episode will inspire you to uncover your own “why” and use i...

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63:21

Dr. Marc Cohen Reveals Sauna Study Misconceptions

AGEIST ·

2024/11/21

Dr. Marc Cohen reveals a significant oversight in the celebrated Kuopio Ischemic sauna study, which linked sauna use with a marked decrease in all-cause mortality: the critical role of cold exposure. While the research attributes dramatic health benefits to saunas alone, Dr. Cohen points out that in Finland, the practice inherently includes cold plunges—a factor often excluded in Western interpretations. He explains how alternating between hot and cold amplifies cardiovascular benefits, detox...

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30:43

Inside the Global Wellness Summit 2024

AGEIST ·

2024/11/14

David Stewart shares highlights from his keynote at the Global Wellness Summit in Scotland, where he explored wellness trends and the expanding importance of optimism in health. Research shows that a positive mindset and simple health practices—like quality sleep and exercise—can have more impact than high-cost interventions. Today, wellness is a booming $6.3 trillion industry now outpacing tech, with a growing demand for travel, mental health support, and eco-friendly retreats. Finally, Davi...

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45:26

What Dr. Amy Killen Says About Aging

AGEIST ·

2024/11/07

Dr. Amy Killen joins the podcast to discuss how real-time health metrics and personalized tracking are revolutionizing modern wellness. With her expertise in regenerative medicine, Dr. Killen provides a roadmap for optimizing health and making informed choices based on individual needs. She explores the benefits of emerging health tech like continuous glucose monitoring and wearable devices, which empower individuals to make better decisions. Dr. Killen’s insights encourage listeners to take ...

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55:43

Dr. Scott Sherr: Prevent Winter Colds

AGEIST ·

2024/10/31

Find yourself feeling a sniffle coming on as winter descends? In this episode, Dr. Scott Sherr shares actionable insights into strengthening immunity, particularly during the colder months. He explains the importance of balancing our exposure to germs for immune resilience and highlights nutrient-rich diets, hydration, and supplements like cordyceps mushrooms to boost immune function. Dr. Sherr also offers practical tips on using heat therapies and how fasting can enhance immune response. Thi...

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51:16

Dr. Leah Johansen: How Self-Belief Impacts Disease

AGEIST ·

2024/10/24

In this episode, Dr. Leah Johansen shares how belief systems and emotional well-being directly impact physical health. She explains the intricate relationship between self-worth and chronic disease, revealing practical methods to achieve optimal health. Through breathwork, awareness, and understanding our electromagnetic field, Dr. Johansen shows how we can reduce stress and elevate our lives. Listen in to discover how changing your mindset can lead to lasting health improvements.What kind of...

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54:55

Dr. Linda Eller’s Guide to Stress-Free Wellness

AGEIST ·

2024/10/17

Practical, sustainable steps for fostering health and resilience in the midst of life’s everyday challenges with Dr. Linda Eller, D.O. Through her unique perspective, Dr. Eller explains how small, mindful changes can create a foundation for long-term wellness and reduced stress. She addresses common pitfalls in modern health practices, guiding listeners on how to establish a truly balanced lifestyle. Tune in to understand how proactive awareness can improve your overall well-being and help yo...

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56:07

Dr. Jen Wagner: Navigating Menopause and Longevity

AGEIST ·

2024/10/10

Join us for a new take on menopause, hormone therapy, and more with Dr. Jen Wagner, a seasoned physician and advocate for women's health. Dr. Wagner discusses how the conversation around hormone therapy has evolved, and why it's crucial for women to understand their options in managing symptoms like hot flashes, muscle loss, and declining bone density. She also shares insights into why only a small percentage of women today use hormone therapy and dispels common myths that keep women from see...

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49:50

Ashley Selman: Muscle and Strength After 50

AGEIST ·

2024/10/03

Want to build muscle and avoid injury at all costs? Blood flow restriction (BFR) training is a powerful, yet low-impact method that helps build strength, muscle, and bone density without the risks associated with heavy lifting. Professional trainer and former athlete Ashley Selman joins us to explain how this tool is especially beneficial for women over 40, helping to combat muscle loss and maintain independence. She dives into real-world examples, including how BFR helped her regain str...

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53:57

The Workout Mistake Women Make with Dr. Stacy Sims

AGEIST ·

2024/09/26

Do you know the crucial differences in how women and men should approach fitness and aging? This week, women’s health expert Dr. Stacy Sims breaks down the impact of hormonal changes, explaining why women 40+ need to shift their workout routines to see real results. The keys here are high-intensity training and strength-building for women’s long-term health. Dr. Sims explains how to tailor exercises to avoid common mistakes and shares practical strategies to optimize your fitness, no matter y...

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50:04

How Joan MacDonald Lost 70 Pounds After 70

AGEIST ·

2024/09/19

In this rebroadcast of one of our favorite episodes from 2021, Joan MacDonald shares her journey from struggling with high blood pressure, acid reflux, and excess weight to becoming a fitness inspiration for millions. With the help of her daughter/fitness trainer Michelle, the now-fitness-phenom turned her entire health trajectory around after the age of 70. Whether it be counting calories or rotating muscle groups, she explains the steps it took to lose 70 pounds and build strength, showing ...

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284 results

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