Welcome to Ben Greenfield's Weekly Roundup!
In this weekly post, I share with you my most interesting discoveries of the week, including the latest news on the fronts of fitness, nutrition, health, wellness, biohacking, and anti-aging research. I also recap my upcoming events and special announcements so you can keep up with opportunities to learn, giveaways, discounts, and more!
New Discoveries
Japanese Stem Cell Discovery *Rewriting* the Rules of Regenerative Medicine & Why I Joined the Scientific Advisory Council for MuseCell Innovations 🧬
Several years ago, as I started spending more time interviewing regenerative medicine researchers, one thing became clear: the field is full of promise, but also full of misinformation and poorly understood science, especially when it comes to stem cells.
But every once in a while, a discovery emerges, in this case, one that keeps resurfacing in my conversations with serious clinicians and scientists.
One of those big discoveries is a rare population of stress-resistant stem cells first identified in 2010 by Professor Mari Dezawa, MD, PhD, at Tohoku University in Japan.
These cells, known as Dezawa MuseCells®, represent a very different category of adult stem cells.
Unlike many stem cell approaches that require genetic manipulation or laboratory reprogramming, MuseCells® are naturally occurring pluripotent cells capable of differentiating into ectoderm, mesoderm, and endoderm lineages in vivo—without the tumor-forming risks that have historically complicated pluripotent stem cell research.
Even more intriguing, they demonstrate an unusual ability to survive extreme biological stress, including oxidative stress and nutrient deprivation—conditions that typically destroy most cells.
Because of this, I’ve officially joined the Scientific Advisory Council for MuseCell Innovations, the only licensed source of authentic Dezawa MuseCells® produced using Professor Dezawa’s patented methods.
This all comes down to the role regenerative medicine is beginning to play at the frontier of human biology.
If this field is going to shape the future of medicine, it has to be pursued with real scientific scrutiny and a commitment to doing things the right way, and I want to support that while addressing the confusion and shoddy science so often found in the stem cell industry.
I’ll be sharing more about the science behind MuseCells® and how this research continues to evolve in the months ahead.
In the meantime, you can explore more about the technology and research behind Dezawa MuseCells® here.
Live Fuller & Train Like a Pro?! *Here's* the Unique Platform I Co-Created to Help You Do Both ⚡
Most fitness platforms will try to help you build a better body, but LIFE Premium was designed to help you build a better LIFE with it.
When you join, you get group coaching from an elite team personally trained by me.
My coaches care about helping you step into a fuller, more purposeful life just as much as they care about the physical work it takes to get there.
Daily programming is intelligently structured so that your strength, energy, and resilience develop together rather than pulling in different directions, and monthly small-group coaching calls in cohorts of fewer than 15 give you the kind of personal, high-accountability environment where real transformation actually happens.
Your membership also includes:
Ad-Free Content Library: Workouts, recipes, podcasts (including Boundless Life), articles, and expert-led videos.
Ellen: Your always-on AI health guide for better decisions, smarter questions, and personalized strategies.
Groups: Focused communities designed for accountability, learning, and connection.
Places: A curated map of gyms, studios, restaurants, and wellness spots near you.
Community + Events: Live sessions, challenges, and experiences that make health social and sustainable.
This Week in Health & Performance: What the Latest Research Says
🕒 Circadian Rhythm & Fat Metabolism: A new study suggests that disruptions in circadian rhythm can directly cause metabolic dysfunction inside fat cells, potentially contributing to weight gain and metabolic disease. Interestingly, researchers found that NAD-related pathways may help counteract some of these effects due to their role in cellular energy metabolism and weight regulation (read more here).
🧬 Synbiotics for Male Fertility: When it comes to improving sperm quality, probiotics—especially when delivered as synbiotics that combine beneficial bacteria with targeted prebiotics—may outperform traditional antioxidant supplements. Emerging research suggests that improving the gut microbiome is a surprisingly strong way to support reproductive health (study here).
🧠 Time-Restricted Eating & Brain Health: In a 12-week study of older adults with mild cognitive impairment, a simple 15:9 time-restricted eating schedule, limiting food intake to a 9-hour daily window, led to modest improvements in cognition, including better verbal memory and recognition memory. The results add to growing evidence that metabolic timing can influence brain function and aging (read the study).
Key Takeaway: From circadian biology and microbiome health to meal timing strategies, emerging research continues to show that when and how we fuel our bodies can influence everything from metabolism to fertility to brain performance.
Want to dive deeper? Click the links above to explore the research, and click here to follow me on X for all the latest health and performance news hot off the press!
Product Of The Week
::: One of My Favorite Superfoods for Recovery (Get 31% Off & Free Gifts) 🍯 :::
Hard training, travel, long workdays, and inconsistent sleep can all increase oxidative stress and inflammatory signaling.
Some inflammation is necessary for adaptation and progress, but the key to staying healthy and performing well is helping your body resolve that inflammation efficiently.
One simple superfood I regularly use to support this process is high-grade New Zealand Mānuka honey from Manukora.
Authentic Mānuka contains the antibacterial compound MGO, along with dense polyphenols that support balanced immune activity, antioxidant defenses, gut microbial health, and steady metabolic energy.
I use Manukora because every jar is independently tested for potency and fully traceable back to its source.
Podcasts I Recorded This Week:
The Latest Content I Was Featured On This Week:
Biohacking the Vagus Nerve f. Ben Greenfield — The Health Upgrade Podcast
Ben Greenfield on Raising Healthy Kids, Pregnancy Fitness, and Dad Preparation
My Article Feed:
My full article feed and all archives of my articles are here.
Upcoming Events:
ECO26 | May 14–16, 2026
Healthcare practitioners looking to achieve exponential clinical outcomes through Foundational Medicine: I'm speaking at ECO26 (May 14–16, 2026, in Boise, ID), a three-day event featuring cutting-edge education, powerful networking, and actionable strategies to elevate your practice (with up to 20 CEUs available for some practitioner types). I'll be presenting “The Detox Frontier: Lessons from The Edges of Biohacking to Everyday Vitality” on May 15th alongside some of the top minds in functional and foundational medicine. You can use this link to register and claim a $400 discount!
Ultimate Men Over 40 Health Summit | June 8–14, 2026
If you're a man over 40 looking to improve your strength, energy, health, hormones, recovery, longevity, and performance, I'm speaking at the Ultimate Men Over 40 Health Summit (June 8–14, 2026), a free 7-day virtual event featuring 100+ experts across 7 core pillars. I'll be presenting “Optimizing the Human Machine for 40 and Beyond” alongside some of the best minds in men's health today. You can register for free here now!
Health Optimisation Summit | September 11–13, 2026
I'm speaking at the Health Optimisation Summit in London (September 11–13, 2026) at the Business Design Centre. This isn't your average health conference. HOS unites the best minds in biohacking, longevity, nutrition, fitness, and medicine, with one goal: to actually make people healthier. With 35+ world-class speakers, 120+ cutting-edge brands, and 4,000 like-minded people all under one roof, it's two days that could genuinely change how you approach your health. Get your ticket here and use code BEN to save 10% off registration!
The Boundless Couples Retreat | November 10–14, 2026
Ready to reconnect and recharge with your partner in paradise? Join the Greenfields at the stunning Prana Maya resort in Belize for the Boundless Couples Retreat, November 10–14, 2026. It's a five-day, all-inclusive escape designed to deepen your relationship, restore your vitality, and create memories that last a lifetime. From relaxation and adventure to intimate relationship coaching with Jessa and me, every detail is crafted to send you home with a stronger bond and a reinvigorated spirit. Spots are limited, so discover more and secure yours here today!
Stay tuned for future updates—and you can always keep up with my LIVE appearances by checking out bengreenfieldlife.com/calendar!
This Week's Most Popular Instagram Post:
This Week's Most Popular Tweet:
This Week's Most Popular Facebook Post:
Cheers,
Ben
One Response
Ben,
Thanks for the article. The MuseCells are fascinating.
I have a very dear brother-in-law who was just diagnosed with ALS. The outlook is very grim. In the research I have done, there seems to be no real hope.
I am assuming these stem cells have no impact on something like ALS, but I still wanted to chase down any possibility for treatment that might be available.
In Christ,
Ryan