Dr. Elizabeth Poynor is a gynecologic oncologist, Chair of Women's Health at Atria Health Institute, and host of the podcast “Decoding Women's Health.”

This conversation explores why women's health has been siloed for centuries, modern hormone therapy, the estrogen-brain connection, metabolic shifts, GLP-1s, and what partners need to understand about this transition.

Underneath it all: generations of women have known what the medical literature is only now catching up to.

Elizabeth is a vital voice. I hope this discussion reaches those who need it. Enjoy!

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Brad Stulberg is a bestselling author, executive coach, and one of my favorite thinkers on sustainable high performance.

This conversation explores the dualities in personal development, discipline and self-compassion, striving and surrender, intensity and joy. We discuss the "humble badass" archetype, building resilient identities, why curiosity is the skeleton key, and excellence as an antidote to alienation.

Along the way, Brad gets vulnerable about the childhood wounds that still drive his ambition—and I share my own.

Amidst the chaos of self-help, Brad remains a principled voice of reason. Enjoy!

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Dr. Maya Shankar is a cognitive scientist, host of the podcast “A Slight Change of Plans,” and author of “The Other Side of Change.”

This conversation explores the challenge of navigating involuntary change, whether it's injury, loss, or a future that suddenly collapses. We discuss identity and attachment, the illusion of control, why our brains resist uncertainty, the end of history illusion, rumination, and practical tools to help us see change not as a burden—but as a revelation.

Maya also opens up about her own identity crises, a career-ending injury at 15, and later pregnancy losses that forced her to confront who she was beyond her deepest aspirations.

Change is coming for all of us, whether we like it or not. Maya's goal is to give you the companion you need along the way. Enjoy!

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Dr. Will Bulsiewicz is a gastroenterologist, one of the world's foremost authorities on the gut microbiome, and author of “Plant Powered Plus.”

This conversation explores the gut-immune connection as the root determinant of chronic inflammation—the silent driver behind three out of five deaths. We discuss the four nutritional workhorses, why your microbiome is nocturnal, and what happens when you eat after dark.

Dr. B also opens up about a decade-long estrangement from his father—an unexpected reminder that healing isn't always biological. Sometimes it's emotional.

This is our third exchange together. Our best yet. Enjoy!

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Mark Manson is the author of The Subtle Art of Not Giving a F*ck and host of the Solved podcast.

Back for his third appearance (eps. 476, 882), we skip the backstory and pull questions from a fishbowl. We discuss vanity goals versus values-aligned goals, why procrastination is really about emotional avoidance, the trap of people-pleasing, how to distinguish intuition from impulse, and the delusion of passive manifestation.

I also share my own shifting perspectives on positive thinking and the dissolution of self.

Mark is the anti-guru. And this conversation is your New Year intervention. Enjoy!

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The finale is here. Let's close this thing out.

Part 2 explores courage, honesty, creativity, relationships, and balance. Bravery. Addiction. Love. Mastery. And why fulfillment doesn't require sacrifice.

It's been fun putting this auditory yearbook together. I hope you found these two episodes uplifting and inspiring.

Thanks for the love and support. This podcast has been an amazing journey. I'm grateful you're on it with me.

Here's to 2026.

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Happy holidays from the RRP mothership.

Another year in the rearview. Time for what's become one of my favorite traditions, our annual “Best Of.” 12 years running now.

This year was packed with an astonishing array of guests—too many to feature here.

Part 1 revisits the year's most powerful moments: longevity science, neuroplasticity, happiness research, emotional regulation, consciousness, and what it actually takes to change.

I'm filled with gratitude for our guests, my team, and most of all—for you. I don't take your attention and support for granted. Here's to growing together in 2026.

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Kevin Hall, Ph.D., is a physicist-turned-nutrition scientist and author of "Food Intelligence: The Science of How Food Both Nourishes and Harms Us.

"This conversation explores why diets fail, the truth behind the "slow metabolism" myth, how ultra-processed foods hijack our biology, and why the 800-pound gorilla driving the obesity epidemic isn't willpower—it's our toxic food environment.

He also opens up about his decision to leave the NIH after 20 years due to political interference with his research.

Kevin is an honest actor, always trying to set matters to rights amidst a hurricane of nutritional misinformation. Enjoy! 

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👉🏼https://www.livemomentous.com/richroll

Seed: Use code RICHROLL20 for 20% OFF your first order👉🏼https://www.seed.com/RichRoll

Roka: Unlock 20% OFF your order with code RICHROLL👉🏼https://www.ROKA.com/RICHROLL

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Find out more about Voicing Change Media at https://www.voicingchange.media and follow us @voicingchange

Rutger Bregman is a Dutch historian, bestselling author, and the guy who went viral telling Davos billionaires to pay their taxes.

This conversation is a salve for the crisis of meaning percolating through modern life. We explore Rutger's pragmatic antidote—moral ambition—and discuss why a quarter of workers believe their jobs are socially useless, what the abolitionists teach us about coalition-building, and why factory farming may be the ethical abomination future historians judge us for most harshly.

Rutger's conviction is rare and infectious. By the end of our conversation, I was so inspired that I committed $25K to his organization’s new US Food System Reform Program, a cause area that is deeply important to me.

Final Note: Through December 31st, every dollar to moralambition.org/food is matched.  I hope you’ll consider joining me today in making a donation to this impactful organization. See the links in our newsletter, on our website, and in our Substack. Let’s lean into our own moral ambition and do something truly meaningful, together.

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Gregg Renfrew is the founder of Beautycounter and now Counter—a pioneer in the clean beauty movement.

Five years after our first exchange, Gregg returns with her story about navigating imposed change. After losing her company, she bought it back out of foreclosure in 48 hours—then let it die to save it. Today, we explore identity collapse, decoupling self-worth from success, why selling control means losing it, and the beauty industry's toxin loopholes.

Along the way, we confront rebuilding when everything you've created is stripped away.

This is an honest conversation about ego, humility, and the courage to begin again. Enjoy!

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Squarespace: Use code RichRoll to save 10% off your first order of a website or domain👉🏼http://www.squarespace.com/RichRoll

Whoop: The all-new WHOOP 5.0 is here! Get your first month FREE👉🏼https://www.join.whoop.com/Roll

Momentous: High-caliber human performance products for sleep, focus, longevity, and more. For listeners of the show, Momentous is offering up to 35% off your first order👉🏼https://www.livemomentous.com/richroll

On: High-performance shoes & apparel crafted for comfort and style👉🏼https://www.on.com/richroll

LMNT: Get a free LMNT Sample Pack with any purchase👉🏼https://www.drinklmnt.com/richroll  

Check out all of the amazing discounts from our Sponsors👉🏼https://www.richroll.com/sponsors 

Find out more about Voicing Change Media at https://www.voicingchange.media and follow us @voicingchange