David Stewart

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.

Author

David Stewart

Category

Education

Podcast website

ageist.com

Latest episode

Jul 9, 2026

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Episodes

Self-Knowledge and The Wearable Tracker: Caroline Kryder, Of Oura Ring Explains 01.02.2022

What are the benefits of wearable trackers and how do they work? What is heart rate variability (HRV)? How do trackers understand when we’re in light sleep, deep sleep, or REM sleep? What is the optimal time spent for each sleep cycle? What does the future for wearable trackers look like?  Wearable trackers take the guesswork out of our health. Instead of going off of a feeling, you can now get pe...

Your Healthiest Healthy: Samantha Harris 25.01.2022

Emmy-winning TV host, author, certified health coach & trainer Samantha Harris was stopped in her tracks when she received a breast cancer diagnosis. When she was just about to turn 40, she found a lump in her breast which doctors assured her was nothing. After months and multiple doctors later, Samantha had the lump removed and it turned out it was indeed breast cancer. This event caused a pr...

Peptides - The Future of Medicine: Kien Vuu, MD 19.01.2022

What are peptides and what are the benefits? What are some of the cautions? How are peptides administered? How can I find a doctor who is trained in anti-aging or functional medicine? Dr. Kien Vuu has joined us on the SuperAge podcast twice before to share his knowledge on Regenerative and Anti-Aging medicine and today he joins us to dive into the topic of peptides, of which he is an expert. Pepti...

Cosmetic Dermatology Confidential: Dr. Kelly Stankiewicz 11.01.2022

Power your health in 2022, increase your health span, and surround yourself with a supportive team of like-minded high performers. Learn more about and apply for our transformative How to Super Age: Mastermind Seminar and Group here: https://www.weareageist.com/how-to-super-age-a-mastermind-seminar-and-group-ii/   Is botox a toxin? What is the purpose of fillers? What does CoolSculpting do and wha...

Are Injectables the Future of Plastic Surgery?: Dr. Lara Devgan 05.01.2022

How can we optimize our skin without injectables? When are injectables a good idea? What about surgery? What lifestyle habits improve the way we look ? What products should we use for hydration, texture, hyperpigmentation, or fine lines? Dr. Lara Devgan is a board-certified, Yale-educated, Johns Hopkins Medical School-instructed, and Columbia/ New York Presbyterian Hospital-trained plastic & r...

Being Deep, Light, and Mindful: The Unflappable Alex von Bidder 22.12.2021

Alex von Bidder is a yogi, meditation practitioner, and happens to have run one of the most famous restaurants in the world for over 40 years: The Four Seasons in New York City. He joins us to discuss how one can keep their head in a hurricane of chaos, being bribed for a table at the restaurant with stacks of cash, not having a table for Jackie O, immigrating to the US from Switzerland, and conqu...

The Positive Prescription: Dr. Samantha Boardman 14.12.2021

How can we shift our mindset from “What’s going wrong?” to “What’s going right?”? How can self-care become damaging to ourselves and our relationships? What is the importance of connection with others? Why is being mediocre at something new a good thing for us? How can we use imagination and play to create a more fulfilling life?  Dr. Samantha Boardman, a New York based positive psychiatrist, is c...

Career Re-Boot, You Are Stronger Than You Think You Are: Wendy Perrotti 08.12.2021

Many of us believe that what limits us are our external circumstances. However, we are often internally self-limited. When we push back on our limiting beliefs, we are capable of any and everything.  Wendy Perrotti, co-founder of Camp Reinvention, and David Stewart, founder of AGEIST, discuss these self-limiting beliefs and the possibilities that follow when we stop believing in them, where the at...

Unlocking the Secret to Better Energy: Dr. Michael Breus, The Sleep Doctor 30.11.2021

Want to improve your health and boost energy? Align your life with your chronotype and body type to better understand when to fast, exercise, and sleep.  If we aren’t getting adequate sleep, a lot of physical and mental problems can follow from the obvious symptoms like fatigue and brain fog to more serious things like increased risk of dementia. What is an adequate amount of deep and REM sleep? W...

Gut Health, Microbiome, and the Brain. Everything You Need to Know: Dr. Emeran Mayer 17.11.2021

“Gut-health” has become a buzzword in the wellness industry, but what exactly is our gut and how do we know if it’s healthy? What role does it play in our overall health? What is its connection to the brain? Do probiotics or fermented foods do any good for our gut? Does fasting impact the gut microbiome? What are 5 things we can do for a healthier gut?  Dr. Emeran Mayer, gastroenterologist, author...

HRT, Estrogen and Menopause, New Scientific Findings: Dr. Rebecca Dunsmoor-Su 09.11.2021

Much of what is thought about hormone replacement therapy is outdated and untrue. We do a deep dive into what is HRT, what are the benefits, and who should and should not be taking it. What happens during a women’s hormone journey from childhood to post-menopausal? How are hormones and a woman’s brain connected? What happens in a women’s body during menopause? What is hormone replacement therapy?...

Change Your Life By Changing Your Brain: Dr. Patrick Porter, PhD: Neuroscience Expert and Founder of BrainTap® 03.11.2021

Why do we feel good in the mountains, looking at a fireplace or by the ocean? It is not the pretty landscapes, it has to do with their vibration frequencies.  Neuroscience has now figured out how to use sound and light to produce the same brain effects to bring people to deep states of relaxation and inspiration. Dr. Patrick Porter is a brain researcher, author, speaker, and founder of BrainTap. H...

My 9 Month Fitness Transformation: Susan Guidi 26.10.2021

Is it too late to get healthy? How can someone take control of their physical and mental health no matter what age? What importance does community play in going through a complete life transformation? How do the thoughts in our heads manifest into reality? What is Susan’s healthy routine? Can women lift weights and not get bulky?  Want to learn more about our exclusive, life-altering Super Age Mas...

The Real Truth About Keto, Fasting and Longevity: Jim Howard 20.10.2021

What is the importance of biofeedback for longevity and improved physical performance? How can we accurately measure whether we are in ketosis? What is intermittent fasting? What impact does an 18:6 diet really have on our bodies? What is autophagy? How does fasting affect muscle mass? What are exogenous ketones? What does it mean to be metabolically flexible?  With all of the conflicting informat...

The People We Have Become: Stacy London 13.10.2021

Start an entirely new venture way out of one's career experience at age 52? How audacious, but why not.  Stacy shows us how to be an absolute beginner, to believe you can do it, and to thrive. Fashion editor, stylist, author, star of “What Not to Wear”, and now founder of State Of Menopause, Stacy continues to evolve and show that the only things that can hold you back are self-limiting belie...

Sonic Brain Health? What You Can Do to Improve: Nina Kraus, Ph.D  05.10.2021

How does sound make us feel connected to our communities and the world around us? How can sound actually damage our brain? How do we create a sonic environment that promotes better health? What impact does playing music have on our brain and rate of success in life?  Nina Kraus, the author of Of Sound Mind , joins us on the SuperAge podcast to answer these questions. Nina Kraus is a professor at N...

Longevity Science in Practice: Dr. Kien Vuu 29.09.2021

What is longevity science? What are the 7 lifestyle changes that will help us to live a healthier life? What happens to our bodies when we’re in a stress state? What does it mean to “age” and are there promising interventions to slow this process? Does having a sense of purpose impact us on a cellular level? What are peptides and how do they impact performance? What’s the deal with Resveratrol, mT...

Perseverance, Resilience, & Reinvention: Joan Lunden 22.09.2021

What was it like to be the co-host on Good Morning America in the 80s and 90s? How did Joan Lunden balance her booming career and being a new mother all while being on TV every morning? How did age play a role in Joan leaving GMA? What are the 3 things we need in our lives to age better? What are Joan Lunden’s health non-negotiables?  The iconic Joan Lunden joins us this week to discuss these ques...

Why Do Marriages End?: Dr. Mark Goulston 15.09.2021

How can we become better listeners? Why do marriages end? What is the difference between feeling felt vs. feeling understood ? What are the gender difference when it comes to emotional intimacy? How do you properly respond to your partner’s emotions? Why don’t we understand how powerful disappointment can be in our lives? Dr. Mark Goulston, psychiatrist and author, joins us on the SuperAge podcast...

90 Is the New 40: Dr. Michael Roizen, Chief Wellness Officer at the Cleveland Clinic 08.09.2021

Is it better to eat your larger meals earlier in the day or later in the day? Are there ways we can “turn off” aging? How are stem cells being used to treat diseases? What role does TMAO inflammation have in heart disease, stroke, kidney disease, etc.? How do steak, egg yolks, & cheese contribute to these diseases? Why does Dr. Roizen drink 6 cups of coffee a day? Dr. Michael Roizen, the Chief...

Is Instagram A Drug?: Dr. Anna Lembke 25.08.2021

What is dopamine? Can social media use become an addiction? How is social media impacting our brains and ability to feel pleasure or pain? How can we break the addictive cycle of our digital devices?  Dr. Anna Lembke, psychiatrist and author of the new book, “Dopamine Nation: Finding Balance In the Age of Indulgence”, joins us this week to answer these questions. She has done extensive work to stu...

Homeopathy, What Is It and How Does It Work?: Christophe Merville, D.Pharm 18.08.2021

What is homeopathy? How can homeopathy compliment or, in some cases, replace traditional pharmaceuticals? How can we use homeopathy to treat things like allergies, stress, sore muscles, and more? What about homeopathy makes it so individual and specific for each person? How can you find the right homeopathic practitioner? What are the limits of homeopathy?  Christophe Merville joins us this week o...

How A 50-Year-Old TV Anchor Gets It Done: Tamsen Fadal 11.08.2021

What is it like to be a 50-year-old woman on television? What are the different societal expectations for men and women when it comes to aging? Botox, fillers, getting, "work" done? How can we have more meaningful conversations with people? How should we think about retirement? Tamsen Fadal joins us this week on the SuperAge podcast to discuss these questions. Tamsen is a journalist, new...

How To Pivot to a New Career: Willie Banks, Three Time Olympian 04.08.2021

What is it like to be a three time Olympian and hold the world record for 10 years? What is it like to then lose that title? How can we transition from one identity to another? How can we get out of our minds and into a flow state?  Willie Banks, Olympic athlete and former 10 year triple jump world record holder, joins us this week on the SuperAge podcast to share his wisdom. He discusses what it...

Family History of Cancer? This Is What We Can Do: Dr. Donese Worden 28.07.2021

What are the new tests for better and earlier cancer prevention? If we catch cancer cells early, is there a better chance of successful treatment? How does diet impact cancer? How do we properly get our bodies into ketosis? How does stress impact cancer?  Dr. Donese Worden, with over 18 years of experience, joins us for the second time on the SuperAge podcast to discuss cancer screening, preventio...

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