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
Driving Barefoot in Your EV?! *Here's* Why That Might Be a MISTAKE… 🦶⚡🚗
One question I've been increasingly curious about is how much electromagnetic field (EMF) exposure actually exists inside electric vehicles, especially as EV adoption continues to rise.
So I decided to find out.
Brian Hoyer is the building biologist I worked closely with when optimizing my own home environment, a process you can hear all about in this podcast episode. He's an environmental health consultant and founder of Shielded Healing, specializing in testing, shielding, and mitigating electromagnetic fields in homes, buildings… and even vehicles.
Brian recently came to my house, and we took a field trip out to my garage for some very “high-budget documentary filmmaking” (an amateur video with a handheld meter).
Quick summary: in electric vehicles, the primary concerns appear to be magnetic fields near the floor during acceleration, combined with ongoing radiofrequency (RF) exposure from onboard wireless systems.
According to Brian's testing, sitting in the back seat directly above the battery compartment of a Tesla may actually result in greater exposure, not less. If you're going to shield any area of the vehicle, the back seat may be the place to start. (And, according to Brian, it's also a good idea to avoid driving barefoot.)
As for me, I'll be removing the back seat of my Tesla, placing shielding material underneath it using products from Brian's website, and reinstalling the seats afterward.
Have you ever tested your vehicle for EMFs, or is it something you've never considered?
If you spend time surrounded by wireless technologies, long-term radiofrequency exposure is at least worth understanding and evaluating for yourself.
If you're ready to begin making simple changes to your home or car today, a good way to start is by browsing The Shielding Shop for EMF-smart gear like the SafeCharger, shielded cables, surge protectors, and healthy lighting. You can use code BEN for 10% off, no consult needed.
And to learn more about how I've personally used Brian's tools and to dive deeper into other strategies to protect against EMFs, here are additional resources:
- How I “Hacked My Home”: EMF Shielding, Grounded Floors, Protected Bedroom, The Healthiest Lighting & Much More with Brian Hoyer.
- Hunting Down EMF In Your Office, Bedroom, Gym & Beyond: Is Your Home’s “Dirty Electricity” Wrecking Your Sleep, Your Recovery, Your Health & More? The Official Ben Greenfield & Brian Hoyer Low-EMF Home How-To.
- The Intriguing Science Of Building Biology (Along With A Complete Analysis & Surprising Results From Ben Greenfield’s So-Called “Biohacked Home”)”.
- Can a Necklace or Pendant REALLY Provide EMF Protection?! How to Transform Harmful EMF Waves into Safe Energy.
- The Invisible Force Within Your Home That Could Be Wreaking Havoc On Your Health (And What You Can Do About It TODAY).
This Week in Health & Performance: What the Latest Research Says
💉💪 The 2026 Guide to Maintaining Muscle on GLP-1s: GLP-1 medications can be powerful tools for weight loss, but preserving lean mass needs to be part of the plan. Resistance training, adequate protein intake, and strategic nutrition can help protect strength, metabolism, and long-term health while using these medications. If you're currently taking a GLP-1, or considering one, this evidence-based Kion guide is worth a read (read the full guide here).
🚶♂️⚡ Tiny “Movement Snacks” Still Deliver Big Benefits: New research shows that even brief bouts of exercise—just 1 to 5 minutes at a time, performed 3 times daily on 3 to 7 days per week—can improve cardiorespiratory fitness, including increases in VO₂ max. This means you don't always need hour-long workouts. Small, consistent doses of movement throughout the day can add up in meaningful ways (full study here).
🧬🌱 Your Genes Load The Gun, But Your Lifestyle Pulls The Trigger: A recent study suggests that up to 50% of lifespan may be influenced by inherited genetic factors. But genetics are not destiny. The choices you make every day—how you eat, move, sleep, manage stress, and interact with your environment—can profoundly influence how those genes are expressed. In other words, epigenetics should not be overlooked (read more here).
🥩🌾 Animal Proteins Still Have The Edge For Building Muscle: New research found that even when plant proteins are carefully combined to optimize their amino acid profile, they remain less effective than animal proteins for stimulating muscle protein synthesis. That doesn't mean plant-based diets can't support muscle growth, but it does mean they require more planning, larger portions, and greater attention to protein quality. And let's face it: it's generally easier to eat a steak than to meticulously combine the ideal ratios of beans, grains, nuts, and seeds (full study here).
Key Takeaway: The fundamentals still matter: protect your muscle mass if you're using GLP-1s, don't underestimate the power of small daily movement habits, remember that your lifestyle can influence how your genes express themselves, and prioritize high-quality protein if strength and longevity are among your goals.
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
::: 🐶⚡ Biohacking Isn't Just For Humans Anymore + Save $50 on the Hapbee Pets Pad :::
Just like humans, pets can struggle with stress, anxiety, and overstimulation when their surroundings change.
Whenever my dogs have to travel, deal with a new environment, spend time in a hotel room, or have their normal routine disrupted, it can knock them off their emotional and biological baseline.
That's why I've been experimenting with the Hapbee Pets Pad. Instead of relying on treats, oils, or supplements that have to be digested and metabolized, this technology uses ultra-low-frequency signals designed to support a calmer state.
Simply place the pad under your pet's bed, in their carrier, in the car, or anywhere you want them to feel more comfortable.
The HarmonIQ Neckband I use features the same technology; only the Hapbee Pets Pad is adapted specifically for pets. Through the app, you can activate the “Calm” signal, modeled after the molecular signature of CBD, to help support relaxation without chemicals, grogginess, or digestive processing.
If you want to help your dog or cat stay calmer during travel, transitions, or stressful situations, you can save $50 off the device here.
Podcasts I Recorded This Week:
Eat 5 Pounds A Day of Broccoli OR Do *This* (+ Get Microplastics Out of Tissue Fast?!)
The Latest Content I Was Featured On This Week:
My Article Feed:
My full article feed and all archives of my articles are here.
Upcoming Events:
Boundless Live Tour Presented by FormulaIQ | Summer 2026
Join the world premiere of Boundless: The Man Who Became Human, a new feature documentary that follows 20 years of body optimization colliding with life's immeasurable moments—marriage, family, and faith. Experience a live podcast recording and intimate Q&A with my family and me in Los Angeles, New York, Austin, and Moscow, ID, one night in a room full of people chasing the same thing. Purchase tickets here.
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!
Eudēmonia | November 5–8, 2026
I'm speaking at Eudēmonia (November 5–8, 2026, in West Palm Beach, FL), a prevention-focused, science-based health, well-being, and longevity summit designed to add years to your life and life to your years. Across 3 days and 15 venues, you'll experience 200+ talks from 120+ experts, 300 treatments, and 160+ brands covering everything from biohacking, longevity, and hormonal health to gut health, brain health, peptides, mobility, and more. I'll be leading a talk and a movement session alongside some of the brightest minds in health today. Use code BGREENFIELD-EUD-100 for $100 off when you register here!
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!
The Manzo x Ben Greenfield Table Private Dinner | Throughout 2026
If you want to taste one of the world's rarest cuts of beef and experience my North Idaho biohacking compound firsthand, my family and I are hosting The Manzo x Ben Greenfield Table, an intimate, chef-catered VIP dinner on a few limited 2026 dates. The evening includes biodynamic wine, a live cooking demo, a multi-course Piedmontese feast finer than Wagyu, and a night of deep sleep in an EMF-free, fully grounded, circadian-optimized guest room. Anyone who reserves a half or whole Piedmontese bull from Manzo qualifies for a spot, so reserve your allocation and dinner here.
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
