April 3, 2025
Welcome to Ben Greenfield’s Weekly Roundup!
On this weekly put up, I share with you my most attention-grabbing discoveries of the week, together with the newest information on the fronts of health, vitamin, well being, wellness, biohacking, and anti-aging analysis. I additionally recap my upcoming occasions and particular bulletins so you’ll be able to sustain with alternatives to study, giveaways, reductions, and extra!
New Discoveries
Is Chilly Remedy Making You Hungrier? The Shivering Reality About Chilly Publicity, Elevated Starvation, & Fats Loss 🥶🍽️
You’ve most likely heard all about how chilly publicity—whether or not ice baths, chilly showers, or cryotherapy–can ramp up your metabolism, increase restoration, and assist with fats loss. However there’s one thing suprising you won’t be contemplating: chilly publicity can really make you hungrier.
A current research printed within the American Journal of Medical Vitamin simply flipped the script on the concept chilly at all times equals fats loss. In a managed crossover trial, researchers had 47 adults spend 24 hours in a analysis facility the place they might eat as a lot as they needed. The kicker? They did this in each chilly (19°C) and thermoneutral (23.5°C) circumstances to check how the temperature affected their calorie consumption.
When the room was colder, members ate about 13% extra meals, clocking in an additional 411 energy on common. 🤯
Now, the fascinating half right here is that this elevated meals consumption wasn’t tied to adjustments in vitality expenditure, respiratory change ratio (RER), and even carbohydrate oxidation. In different phrases, chilly publicity itself didn’t considerably improve calorie burn—it simply made folks hungrier and led them to eat extra.
The researchers speculate that chilly publicity prompts your physique’s pure energy-sensing mechanisms, prompting you to eat further energy to assist preserve your core temperature. After being uncovered to chilly, your physique might enter a delicate type of survival mode, working more durable to remain heat, which alerts your mind to refuel. This occurs as a result of consuming will increase thermogenesis—a course of generally known as the Thermic Impact of Meals (TEF)—which generates warmth throughout digestion.
Apparently, within the research, some members continued to eat extra the subsequent day if their our bodies had elevated carbohydrate oxidation in the course of the chilly section, indicating that the consequences of chilly publicity on urge for food would possibly persist even after the temperature normalizes.
❄️ So, what’s the takeaway?
✔️If you happen to’re utilizing chilly remedy as a part of a fat-loss routine, simply remember the fact that it’d make you hungrier than common. That post-ice-bath burger you’re craving won’t simply be in your head—it’s your physique’s means of compensating for the acute chill you skilled.
✔️In case your purpose is to lose physique fats, it’s all about stability. Chilly publicity has its place for reinforcing your metabolism and restoration from train, however don’t let these elevated cravings catch you off guard.
✔️Keep aware of your calorie consumption post-cold remedy, and hold the concentrate on nutrient-dense, satiating meals to maintain these cravings in examine.
The underside line: chilly publicity would possibly make you’re feeling like a superhero, however it may possibly additionally make you hungrier than a bear rising from hibernation. Know the science, and also you’ll know easy methods to profit from your chilly remedy with out sabotaging your targets.
Inquisitive about studying extra about easy methods to reap probably the most advantages from chilly remedy, together with for metabolic enhancement and fats loss? Take a look at these sources:
- From Melancholy, Habit & Low Power to Turning into a Complete Breathwork Ninja: How one can Unlock the *Transformative* POWER of Breath, Chilly Remedy & Sweat Lodges with Michael Nuss and Maximilian Freiler.
- Keto vs. Carnivore, Hormonal Chaos from Excessive Protein, the *Stunning* Reality About Chilly Publicity, and Why Carbs Are CRUCIAL with Jay Feldman.
- 377: The Massive Vitamin D Mistake, How Ben Reads A E-book A Day, Chilly Remedy vs. Cryotherapy vs. Chilly Thermogenesis & A lot Extra!
- Capsaicin, Chilly Thermogenesis, Keto Cooking Ideas, Getting To Know Ben Greenfield & A lot Extra!
- The two Finest Methods To Burn Fats Quick (With out Destroying Your Hormones Or Metabolism).
- The BEST Dietary supplements & Assessments For Infants & Kids, Methylene Blue For The Mind, Does Chilly Water Immersion “Smash” Train Outcomes & MORE! Solosode #483.
- Your Mind’s Armor: Why You Want To Care About Your Blood Mind Barrier (13 Methods To Repair A Leaky Mind).
- Stack Chilly Thermogenesis, Blood Stream Restriction & Grounding With Excessive Depth Interval Coaching For Huge Cardiovascular & Hormonal Positive aspects, With VASPER Inventor Peter Wasowski.
📢 This Week in Well being & Efficiency: What the Newest Analysis Says 🚀
🩸 Blood Donation Alters Genes: Donating blood can really change your genes! New Analysis discovered that frequent blood donation was linked to genetic adjustments in blood stem cells that assist the manufacturing of latest, non-cancerous cells—with out elevating most cancers threat. An enchanting take a look at how your physique adapts to common blood donation (learn extra right here).
😴 Exogenous Ketones for Higher Sleep: Taking BHB ketones earlier than mattress (1.5 to 2.9 grams) may also help enhance sleep high quality, resulting in larger scores for “sleepiness on rising” and “frequent dreaming.” This might be value a shot in case your sleep wants a lift (take a look at the research).
🥤 Weight loss plan Soda & Anxiousness Threat: Do you drink Weight loss plan Coke repeatedly and really feel anxious? I do know that not too long ago I mentioned an occasional Weight loss plan Coke wasn’t an issue, however seems that repeatedly ingesting weight loss plan sodas containing aspartame (like Weight loss plan Coke) is linked to elevated nervousness and adverse impacts on sperm well being, in response to new analysis. One thing to consider earlier than cracking open that may, fellas (full particulars right here courtesy of Nick Norwitz).
💚 Hashish and Early Coronary heart Assaults: A brand new research means that hashish customers are considerably extra more likely to expertise a coronary heart assault at a youthful age in comparison with non-users. Undoubtedly value noting if you happen to’re a daily person (learn the report right here).
📌 Key Takeaway: This week’s analysis reveals some stunning results of frequent habits—from blood donation altering gene expression to weight loss plan soda rising nervousness and hashish use elevating coronary heart assault threat—plus a possible sleep increase from ketones.
🔗 Need to dive deeper? Click on the hyperlinks above to discover the analysis and click on right here to observe me on X for all the newest well being and efficiency information scorching of the press! 🚀
Product Of The Week
::: Save 15% on Fatty15, a Little-Recognized Hack for Resilient Growing old ::
Getting older can really feel like your physique’s beginning to flip towards you. You’re placing within the work: coaching arduous, consuming clear, prioritizing sleep. However irrespective of how dialed-in your routine is, your cells simply don’t appear to bounce again like they used to. It’s irritating, proper?
There is a stunning new participant within the longevity sport that would provide help to keep robust and resilient as you age—and it’s known as C15:0. This little-known fatty acid would possibly simply change into your secret weapon for staying energized, recovering sooner, and preserving your physique performing at its finest.
A current research printed in Vitamins revealed that C15:0 packs a critical punch relating to mobile well being. Not solely does it assist fortify your cells towards age-related breakdown, however it even outperformed rapamycin—one of the crucial well-researched longevity compounds—relating to enhancing mobile perform. In different phrases, if you happen to’re seeking to age like a professional, fatty15 would possibly simply be the sting you’ve been in search of.
This isn’t just a few fly-by-night discovery. A decade of Navy-funded analysis has led to Fatty15, a pure, bioavailable, science-backed, patented, and award-winning C15:0 complement designed to sluggish getting older and shield your long-term well being.
And once I say science-backed, I’m not kidding. Fatty15 has racked up:
- 40+ patents
- 100+ peer-reviewed research
- 20+ awards
These things is clinically confirmed to assist:
✔️Liver well being
✔️Purple blood cell well being
✔️Ldl cholesterol well being
✔️Intestine microbiome well being
If you happen to’re critical about staying resilient, vibrant, and robust because the years go by, Fatty15 is the actual deal. Need in?
Get 15% off your first order of Fatty15 with code BEN at checkout right here.
🥁 You Can Now PRE-ORDER Your Absolutely Up to date Copy of Boundless to *Optimize* Your Physique, Thoughts, and Spirit! 📚💪
During the last 12 months, I have been working tirelessly on one thing that I’m thrilled to lastly share: the brand-new, up to date model of my best-seller, Boundless.
Like a cookbook for the human blueprint, the revised and up to date version of Boundless provides you a zero-guesswork information to becoming an entire knowledgeable in what makes your mind tick, your physique work, your spirit pleased, and your life fulfilled.
You possibly can flip to *any* chapter and uncover probably the most up-to-date, research-proven, trench-tested methods to construct muscle, burn fats, stability hormones, dwell longer, sleep higher, have mind-blowing intercourse, and far, rather more!
A number of of the important thing matters that the newest model of Boundless explores are:
- Methods to optimize mitochondrial density and biogenesis for peak vitality and metabolic well being.
- New strategies to stimulate the vagus nerve for stress discount, sleep high quality, and better coronary heart charge variability utilizing mild, sound, and electrical interventions.
- Up to date methods for restoring circadian stability, combating jet lag, and maximizing sleep, naps, and meditation.
- Insights on the consequences of electromagnetic frequencies on the mind and physique, with recommendations on modifying gadgets for higher shielding.
- The newest on addressing power infections, detoxifying from mildew, and enhancing intestine perform with cutting-edge testing and coverings.
- New dietary supplements, biohacks, and protocols primarily based on current longevity science, together with age-reversal insights.
- Contemporary routines and damage restoration instruments, plus minimalist strikes to burn fats all through the day with out fitness center reliance.
If you happen to’re able to transcend the short fixes and reclaim management over your vitality, that is your probability. Full of insights on the whole lot from breathwork to chilly remedy and the newest anti-aging methods, Boundless will provide help to construct a balanced, sustainable strategy to lifelong well being. I can’t wait so that you can expertise the whole lot this information has to supply!
If you happen to’re able to uncover a treasure trove of the newest science-backed methods for enhancing each side of your thoughts, physique, and spirit, you’ll be able to click on this hyperlink to pre-order your new up to date copy of Boundless.
Podcasts I Recorded This Week:
Hoolest, Simply Thrive (code BEN), MUDWTR, LVLUP Well being (code BEN15), and Fatty15 (code BEN).
NOVOS (code BEN10), Quantum Improve (code BEN15), Feno (code BEN), Organifi, Historical Crunch, and Manukora (code BEN).
The Newest Content material I Was Featured On This Week:
Males’s Well being Australia: Purple Gentle Remedy Legit?
Upcoming Occasions:
Well being Optimisation Summit — Austin. TX: April 12–13, 2025
The Well being Optimisation Summit, Europe’s high wellness convention, is making its U.S. debut in Austin, Texas—and I might be there! Be part of me for a robust discuss and Q&A, plus expertise insights from 35 world-class audio system overlaying the whole lot from vitamin and health to longevity and psychological well being. Discover over 100 exhibitors, take a look at the newest biohacking tech, and join with 2,000 like-minded attendees. Seize your tickets right here.
The Boundless Household Retreat with Ben Greenfield — Crans-Montana, Switzerland: Might 28 – June 1, 2025
Be part of me within the Swiss mountains for a five-day wellness retreat designed to deepen connections, optimize well being, and rejuvenate the thoughts and physique. You may expertise every day motion, breathwork, chilly plunges, mountain climbing, and hands-on workshops whereas studying cutting-edge methods for longevity and stress resilience. Spots are restricted—reserve your house right here.
The Ark Retreat — Spokane, WA.
Be part of me at The Ark Retreat, an unique, cutting-edge wellness expertise at my absolutely biohacked dwelling in Spokane. You’ll get hands-on entry to the newest biohacking tech, natural farm-to-table meals, customized well being insights, and the possibility to attach with a like-minded neighborhood—all in a perfected surroundings designed to optimize air, mild, water, and vitality. Do not miss this chance to remodel your well being and construct lasting connections. Click on right here to snag considered one of 300 spots now.
Sustain on my LIVE appearances by following bengreenfieldlife.com/calendar!
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