Infrared Sauna Research Advances: Why Researchers are Exploring Body Temperature and Heat Exposure as The Next Frontier in Brain Health

Newly Published Paper Explores the Relationship Between Heat Exposure, Thermoregulation, and Alzheimer’s Disease Resilience

BERKELEY, CA.,—July 15, 2026—Emerging research is shining new light on the potential relationship between thermoregulation, which is the body’s ability to regulate temperature, and long-term brain health. A newly published paper authored by researchers affiliated with University of Montpellier, University of Laval, Washington University and NYU Grossman School of Medicine explored how lifelong heat exposure may contribute to resilience against Alzheimer’s disease and related neurodegenerative conditions.

The paper, titled: “Lifelong heat exposure as a potential contributor to Alzheimer’s disease resilience,” was authored by Dr. Geoffrey Canet and colleagues, and published in the Journal of Alzheimer’s Disease. The findings examined the extraordinary case of an individual carrying a rare genetic mutation that would almost inevitably lead to early-onset Alzheimer’s disease but who, despite exhibiting a high amyloid burden, maintained cognitive function and displayed only limited tau pathology. Researchers identified lifelong occupational heat exposure as one possible contributing factor warranting further scientific exploration.

As part of ongoing research investigating thermoregulation and tauopathy risk factors, Clearlight® Sanctuary™ 2 infrared saunas, manufactured by Clearlight®, the industry leader in infrared sauna and pioneer in innovative health and wellness solutions, were selected for use in the home-based portion of a clinical research project led by co-author Dr. Esther Blessing, MD, PhD, Assistant Professor in the Department of Psychiatry at NYU Grossman School of Medicine. She and Dr. Emmanuel Planel, a pioneer in the study of how sauna range temperatures affect cellular pathways involved in Alzheimer’s disease, and Dr. Canet are leading efforts to understand how thermal treatments can prevent disease development. 

The paper adds to a growing body of scientific interest surrounding the connection between heat exposure, circadian biology, sleep quality, metabolic health, and neurological resilience. Researchers explored how elevated body temperature may help support the body’s natural cellular repair and protein-clearing processes, including mechanisms associated with “proteostasis” or the body’s own ability to manage and clear proteins such as tau, which can accumulate abnormally in neurodegenerative disease.

“We are in the early stages of understanding how thermoregulation and body temperature rhythms influence our brain health and resilience against neurodegenerative disease,” said Dr. Blessing. “This area of research is opening up important scientific questions about how heat exposure may interact with our sleep, metabolism, and cellular pathways associated with healthy aging. Precision methods for delivering and timing thermal treatments are essential to advancing our understanding together with advancing clinical treatment. ”

Researchers selected Clearlight Sanctuary 2 infrared saunas for their ability to provide a controlled, and consistent heat exposure within a wellness setting as part of the study’s broader exploration into thermoregulation and neurological health.

“For nearly three decades, our team at Clearlight has been committed to advancing the science of infrared and other key wellness modalities, and to supporting researchers who are exploring the critical role of heat in human health,” said Clearlight Founder and CEO, Dr. Raleigh Duncan, an early pioneer in infrared sauna innovation and a Doctor of Chiropractic. Dr. Duncan is widely recognized for his expertise in infrared therapy and as a leading contributor to technologies that support healing the human body. “We are encouraged to see leading academic researchers investigating how thermoregulation and heat exposure may contribute to healthy aging and our overall wellness. Supporting evidence-informed research like this is a vital part of our mission.”

Importantly, while researchers emphasized that the study does not establish that infrared sauna use prevents, treats, or cures Alzheimer’s disease or any other medical condition, the findings do contribute to an emerging scientific conversation around heat exposure, thermoregulation, long-term cognitive resilience and preventative wellness.

The published study can be viewed via PubMed.

Study Citation: Canet G, Lucey BP, Blessing EM, Planel E. Lifelong heat exposure as a potential contributor to Alzheimer’s disease resilience. J Alzheimers Dis. 2026 Mar 18:13872877261433226. doi: 10.1177/13872877261433226. Epub ahead of print. PMID: 41848374.

About Clearlight®
Founded by Chiropractic Physician, Dr. Raleigh Duncan, Clearlight® is the global pioneer and industry leader in infrared sauna technology, red light therapy, and wellness solutions for more than 28 years. Every Clearlight product is doctor-designed, science-backed, and built for the modern lifestyle, making the luxury of self-care accessible to everyone through a best-in-class full suite of wellness technologies.

Clearlight has set the industry standards for quality, safety, warranty, and efficacy, helping shape the modern wellness landscape through partnerships that have supported the growth of many retail sauna studio chains and infrared sauna companies. Dr. Duncan is recognized as a pioneering innovator in infrared technology, holding numerous patents and pending patents for Clearlight’s proprietary advancements—including the first Carbon/Ceramic infrared heaters engineered to deliver deeper, more penetrating wavelengths with the lowest EMF and ELF levels available.

Headquartered in Berkeley, California, Clearlight distributes throughout North America, Europe, Asia-Pacific, the Middle East, South America, and the United Kingdom. For every sauna purchased, Clearlight plants two trees through the National Forest Foundation’s Sapling Program, totaling more than 31,438  trees planted since 2024.

To learn more and/or enhance your existing Clearlight sauna experience, visit infraredsauna.com and ClearlightRed.com; and follow on Facebook, Instagram, LinkedIn, TikTok and YouTube.

#Clearlight #Health #Wellness #GlobalPioneer #IndustryLeader #InfraredSauna

For all media interviews, please contact:
Dana Young, Clearlight
m: 415-378-7998
e: media@infraredsauna.com

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Clearlight® Featured in Men’s Journal: Dr. Raleigh Duncan Explains Why Longevity Experts Are Taking Cold Plunges Outside

Clearlight continues to earn national media recognition with another feature in Men’s Journal, highlighting the growing trend of outdoor cold plunging as part of a longevity-focused wellness routine. The publication reaches more than 8 million monthly readers, reinforcing Clearlight’s leadership in the recovery and longevity conversation.


TrendHunter Spotlights Clearlight® Plunge as a Premium Wellness Innovation

TrendHunter recently featured the new Clearlight® Plunge for its blend of premium design, smart sanitation technology, and seamless contrast therapy integration, highlighting the growing consumer demand for elevated at-home wellness experiences. The coverage reinforces Clearlight’s position at the intersection of luxury wellness, recovery innovation, and intelligent home health technology. 


Clearlight® Sauna Stars and Clearlight® Sauna Integrated Wellness Suite Featured in Men’s Journal Longevity Article

Joe Arangio shines a spotlight on the Clearlight Outdoor 2 Sanctuary Sauna and the Clearlight Plunge, alongside the brand’s integrated Wellness Suite approach to daily recovery and performance. Also featured are Clearlight Sauna Stars: LA Dodger Will Smith, Olympic Fencer Miles Chamley-Watson, and Chicago Cubs’ Ian Happ) who reinforce the growing adoption of contrast therapy for at-home longevity.


The Clearlight Red Light Therapy PERSONAL Tower Named Top Home Office Product to Boost Productivity and Well-Being

As screen time climbs past seven hours a day for most adults, wellness solutions that support both skin health and relaxation are gaining traction. Featured in The Work at Home Woman, the Clearlight® Personal Red Light Therapy Tower was personally tested by writer Holly Reisem Hanna, and is highlighted as a simple, restorative addition to any daily routine that is helping users unwind, recharge, and transition into better sleep.


Clearlight PERSONAL Tower Named “Best Red Light Therapy Panel” by CNET

CNET Wellness Editor Nasha Adderich Martinez tested the most popular red light therapy devices, and the results are in. Clearlight earned the top spot as the Best RLT Panel, validating what Clearlight has built: professional-grade photobiomodulation technology designed for daily home use.

Every product on the best list has been tested for at least two months, and some for a few years and each wellness device is evaluated based on its specs, such as irradiance, wavelength precision and any special features.


The Future of Recovery: Clearlight Featured in Lux Exposé 

In its piece, “Boston Marathon Runners Get VIP Recovery Treatment at Hotel Commonwealth,” Lux Exposé highlights Clearlight’s role in shaping next-generation wellness at Hotel Commonwealth, alongside leading collaborators including Hyperice and Rekova.

On site, Clearlight’s Sanctuary 2 Infrared Sauna and Full Body Red Light Tower anchor an integrated recovery experience, enhanced by compression and cold plunge offerings, combining heat, light, and cold to support recovery for guests running in the global event.


Boston’s Hotel Commonwealth and Rekova Recovery Offer Wellness Amenities for Boston Marathon Runners

Recover & Reinvigorate Like the Pros Before or After the Marathon
with
Clearlight®, Hyperice, and The Cold Life Wellness Products

__________________
MEDIA ALERT
April 16, 2026
__________________

WHAT:

Hotel Commonwealth, in partnership with Rekova Recovery, will offer cold plunging, red light and hand-held massage therapies, as well as precision pulse technology in a stack of wellness amenities to hotel guests who are running the Boston Marathon. These therapies have been stacked and will be offered to guests in a beneficial order to boost energy, help recovery happen faster after the Marathon, advance wellness goals, and revive both body and mind. And, they’ll be offered to guests in a private event space, Hotel Commonwealth’s Esplanade Room, throughout the weekend. Towels, robes, and rinse stations will be provided as well.

WHO:

Clearlight® Infrared Sauna and Award-Winning FULL BODY Red Light Towers

Hyperice Recovery Zone including Normatec boots and Hypervolt massage guns

The Cold Life Cold Plunges

WHEN:
Thursday, April 16th – Monday, April 20th, from 9am-5pm daily; extended hours on Marathon Monday, April 20th, 2026

WHERE:
Hotel Commonwealth | The Esplanade Room | 500 Commonwealth Avenue, Boston, MA 02215

WHY:
According to Tyler Therrien, Founder, Rekova Recovery, “Rekova was established to bring elite recovery experiences into everyday, like traveling, and partnering with Hotel Commonwealth allows us to do exactly that in one of Boston’s most iconic hospitality settings, on one of the most historic days in the city. By combining cold plunge therapy, compression recovery, percussive therapy, and red light therapy, we’re giving hotel guests who are running the upcoming Boston Marathon access to the same recovery tools trusted by professional and world-class athletes. These are state-of-the-art, on-demand recovery amenities that will be stacked and offered to anyone running the Marathon in need of recovery, right in the comfort and privacy of the hotel.”

MARATHON VISUALS:

Hotel guests / runners prepping for the Marathon using wellness and recovery amenities
Hotel guests / runners recovering with wellness amenities post-Marathon
Hotel guests / runners plunging in cold tub hardshell inflatables
• Hotel guests / runners recovering in a Clearlight Infrared Sauna and standing in front of FULL BODY Red Light Towers
• Hotel guests / runners using Hyperice Normatec boots and Hypervolt massage guns

ABOUT HOTEL COMMONWEALTH:
From its enviable location in the heart of the dynamic Fenway-Kenmore neighborhood and just one mile from the Boston Marathon’s finish line, Hotel Commonwealth offers a true Boston experience immersed in local flavor and genuine service. The Official Hotel of the Boston Red Sox, Hotel Commonwealth is just steps from legendary Fenway Park, home to MLB games, headlining concerts and special events, and is adjacent to world-renowned universities, medical and cultural institutions. The 245-room hotel boasts a selection of specialty suites and has garnered prestigious accolades from Travel + Leisure, Condé Nast Traveler, U.S. News & World Report, and others. For more information, please visit www.hotelcommonwealth.com or call (617) 933-5000.

ABOUT THE BRAND PARTNERS:

● Clearlight® is the global pioneer and industry leader in infrared sauna technology, red light therapy, and wellness solutions for nearly three decades.

● Hyperice’s innovative products have been used by the world’s best athletes and consumers in more than 60 countries throughout the globe.

● The Cold Life redefines wellness through the power of water by creating science-backed tools that support recovery and transformation

Boston’s Hotel Commonwealth Adds In-Room Wellness and Recovery Amenities Seldom Found Outside a Professional Gym or Spa: Featuring Clearlight, Hyperice, and The Cold Life Wellness Products, in partnership with Rekova Recovery

Spring Into Recovery and Reinvigoration While Traveling

BERKELEY, CA. March 30

Just in time for Opening Day at Fenway Park and the 130th running of the Boston Marathon, Hotel Commonwealth is now offering guests in-room wellness amenities that promote recovery, rejuvenation and overall wellbeing. In partnership with Rekova Recovery, the hotel is inviting guests to include their stay cold plunging, red light and hand-held massage therapies, and precision pulse technology in a selection of wellness amenities that can be placed in-room so guests can remain consistent with their recovery routines. These therapies are offered to guests to boost energy, help recover faster after a workout, advance wellness goals, and revive both body and mind.

According to Tyler Therrien, Founder, Rekova Recovery, “Rekova was built to bring elite recovery experiences into everyday life, like traveling, and partnering with Hotel Commonwealth allows us to do exactly that in one of Boston’s most iconic hospitality settings. By combining cold plunge therapy, compression recovery, percussive therapy, and red light therapy, we’re giving guests access to the same recovery tools trusted by professional and world-class athletes, right in the comfort and privacy of their hotel room.”

In partnership with Rekova and their team of recovery experts, the following amenities (and their benefits) are part of Hotel Commonwealth’s new Rekovery Session that can be brought to select guestrooms, upon request, while staying at the hotel:

Cold Plunge Therapy

  • Commercial-grade cold plunge systems provided by The Cold Life
  • Professionally maintained and temperature-controlled for optimal recovery, cold plunging reduces inflammation while promoting faster recovery, strengthens your immune system by stimulating circulation, boosts your metabolism by regulating your body’s core temperature, and optimizes your sleep system by releasing melatonin.

Therrien says, “You’ll feel more active, alert, attentive, and inspired after a cold-water bath.” And actor and Boston-native, Mark Wahlberg, has publicly shared, “Cold plunging is a non-negotiable for me. It’s about discipline, recovery, and staying sharp every day.”

Award-Winning Red Light Therapy

  • Ensures total coverage as it bathes your body in revitalizing red light,  delivering quicker muscle recovery and skin health benefits
  • Supports faster muscle recovery, more restful sleep, boosts cellular activity and tissue support.
  • Red light therapy is the easiest and most advanced way to increase your healthspan, offering a direct pathway to cell regeneration and longevity
  • The FULL BODY Tower allows guests to incorporate red light therapy into their daily lives and unlock their health and well-being potential
  • Red Light Therapy taps into the power of red and near-infrared light to boost energy production in cells, providing numerous benefits for health and well-being

Says Dr. Raleigh Duncan, founder and CEO, Clearlight, “As someone who travels quite a lot during the year, I know that travel can challenge our bodies in many ways, from jet lag and disrupted sleep cycles to inflammation and muscle fatigue. By offering our FULL BODY Red Light Therapy Tower as part of Hotel Commonwealth’s Rekovery Session, we’re giving travelers a doctor-designed and science-backed way to reset their circadian rhythms, boost their cellular energy, and recover smarter while away from home. This partnership represents the future of hospitality, where wellness innovation is built directly into the guest experience.”

Compression Recovery

  • Hyperice Normatec 3-Leg Compression Boots
  • Designed to improve circulation, reduce soreness and speed muscle recovery
  • Advance your wellness, recover faster, improve your training, and maximize your performance
  • Helps to increase circulation, revive muscles, and reduce swelling and has long been the choice of elite athletes and consumers throughout the globe

Percussive Therapy

  • Used to release muscle tension and improve mobility; Normatec helps you warm up faster and bounce back stronger after a run or workout
  • Offers relief on-the-go – massaging away stress and tension, loosening muscle knots, and targeting fatigue

Shane McWeeny, General Manager, Hotel Commonwealth adds, “As the official hotel of the Boston Red Sox, the hotel works with professional athletes and team trainers regularly who know that stacking or layering healing therapies like these lead to faster recovery, relaxation and optimal performance. We believe that relaxation, rejuvenation, and reinvigoration are integral parts of any stay and we’re committed to making a healthier, better and more sound version of our guests. Whether you’re a world-class athlete, marathoner, or simply returning to the hotel after a workout or run along the Charles River, we’re proud to be offering the next evolution of recovery and wellness amenities to guests and fitness enthusiasts staying with us.”

McWeeny concludes,”Working in partnership with Rekova and its partners, Hotel Commonwealth has created a Rekovery Session that offers guests multiple therapies so when they have 20-30 minutes in their room, they can easily stack relaxation, light, cold, heat, and other wellness solutions for maximum health benefit. No other hotel in the New England area is offering these wellness amenities and innovative recovery programming.”

Hotel Commonwealth’s Rekovery Session also includes health-conscious food and beverage given Executive Chef Kevin Bowdidge is a Marathon runner himself and is committed to providing heart-healthy dining options to hotel guests. For breakfast, any guest who reserves the Rekovery Session amenities can also order two smoothies, protein muffins and energy bars, and electrolyte packets as well, to help kickstart their morning from the comfort of their guestroom.

Guests wishing to add these wellness and recovery amenities to their Hotel Commonwealth stay, should call the hotel’s Front Desk at least 24-hours in advance of arrival, by phoning (617) 933-5000. Or they can request these amenities, as a complete suite or separately, by visiting, https://www.hotelcommonwealth.com/offer/the-rekovery-session/. Applicable fees will be assigned to the guest’s folio and waivers will need to be signed before a guest uses these amenities. Certain terms and conditions, explained at check-in, apply.

SUPPORTING IMAGES:

Photo Credit: Sofoklis Gourdoukis

Rekovery Session amenities offered in-room at Hotel Commonwealth:

https://sagehospitalityllc.box.com/s/d4xhwslp6lpzdffh10054q0vtiwfupa9

Guest using Rekovery Session amenities in-room:

https://www.dropbox.com/scl/fi/o5xfsq3pavu9r57ntazok/Rekovery-Session-Hotel-Commonwealth-Amenities.jpg?rlkey=qlzyxhwvmu6sceejjqx26umwg&dl=0

Guest using The Cold Life Plunge:

https://sagehospitalityllc.box.com/s/zm14n2c7upkwdq2m0ej5ssm8snq45za5

Guest using Hyperice Normatec 3-Leg Compression Boots in-room:

https://sagehospitalityllc.box.com/s/w5dje3bjzt7g6bxh8u17h5uwn2k71a4a

Guests using Clearlight® FULL BODY Red Light Therapy Tower in-room:

https://sagehospitalityllc.box.com/s/1prcdnp0u2z4k9i27l2ncjgx5ctt19sy

https://sagehospitalityllc.box.com/s/ixeu6eg0tk085sfsrif4vvqqpdh7rjp0

Guest using Hyperice Hypervolt Massage Gun in-room:

https://sagehospitalityllc.box.com/s/srwfxcl7brpckx8l4sq4ejigbgksxio2

Guestrooms at Hotel Commonwealth:

https://sagehospitalityllc.box.com/s/eoga86axdev9lf85mdpxneujocjefu4u

https://sagehospitalityllc.box.com/s/tlo9j57h7phlnff102mz2mfflfe4xk4c

ABOUT HOTEL COMMONWEALTH
From its enviable location in the heart of the dynamic Fenway-Kenmore neighborhood and just one mile from the Boston Marathon’s finish line, Hotel Commonwealth offers a true Boston experience immersed in local flavor and genuine service. The Official Hotel of the Boston Red Sox, Hotel Commonwealth is just steps from the legendary Fenway Park, home to MLB games, headlining concerts and special events, and is adjacent to world-renowned universities, medical and cultural institutions. The 245-room hotel boasts a selection of specialty suites and has garnered prestigious accolades from Travel + Leisure, Condé Nast Traveler, U.S. News & World Report, and others. For more information, please visit www.hotelcommonwealth.com or call (617) 933-5000.

ABOUT REKOVA
Rekova is a premium wellness and recovery brand focused on bringing elite-level recovery experiences into hospitality, sports, and lifestyle environments. By partnering with best-in-class providers across cold therapy, compression, percussive therapy, and red light therapy, Rekova delivers a modern, science-backed recovery stack designed to help guests perform, travel, and live better — whether preparing for competition, recovering from training, or simply prioritizing health and longevity.

ABOUT CLEARLIGHT®
Founded by Chiropractic Physician, Dr. Raleigh Duncan, Clearlight® is the global pioneer and industry leader in infrared sauna technology, red light therapy, and wellness solutions for more than 28 years. Every Clearlight product is doctor-designed, science-backed, and built for the modern lifestyle, making the luxury of self-care accessible to everyone through a best-in-class full suite of wellness technologies.

Clearlight has set the industry standards for quality, safety, warranty, and efficacy, helping shape the modern wellness landscape through partnerships that have supported the growth of many retail sauna studio chains and infrared sauna companies. Dr. Duncan is recognized as a pioneering innovator in infrared technology, holding numerous patents and pending patents for Clearlight’s proprietary advancements—including the first Carbon/Ceramic infrared heaters engineered to deliver deeper, more penetrating wavelengths with the lowest EMF and ELF levels available.

Clearlight’s vision extends beyond single therapies. At Clearlight, layering wellness therapies/stacking modalities: combining infrared heat, red light therapy, halotherapy (salt therapy), aroma therapy, and VRT,  to maximize the health benefits and integrate multiple wellness practices into people’s daily lives efficiently.  No other sauna company offers this level of integrated wellness technology.

Headquartered in Berkeley, California, Clearlight distributes throughout North America, Europe, Asia-Pacific, the Middle East, South America, and the United Kingdom. For every sauna purchased, Clearlight plants two trees through the National Forest Foundation’s Sapling Program, totaling more than 22,568 trees planted since 2024.

To learn more and/or enhance your existing Clearlight sauna experience, visit infraredsauna.com and ClearlightRed.com.

ABOUT HYPERICE
Founded in 2011, Hyperice’s innovative products have been used by the world’s best athletes and consumers in more than 60 countries throughout the globe. We’ve built a brand that has helped define an entire category and is well positioned to carry the space forward for many years to come. In 2021, we were recognized by Fast Company as one of the World’s Most Innovative Companies. Our mission is simple – to help everyone on Earth move better, live better and be better. Whether you’re an elite athlete or an individual who is simply looking for solutions to combat the impact of daily life, our suite of innovative products are here to help you unlock the best version of yourself. So you can always be at the top of your game, no matter what that game might be.

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Today, the final piece is in place!

For nearly three decades, Clearlight® has led the way in designing wellness technologies that don’t just stand alone, they work together: Heat & Light & Air & Energy. Today, we introduce Cold.

Meet The Clearlight® Plunge!

With today’s announcement, Clearlight becomes the first brand to deliver a truly complete at-home wellness ecosystem. Our leading wellness products, including infrared sauna therapy, suite of award-winning red light twoers, halotherapy, aromatherapy, and vibrational resonance all integrate wellness seamlessly with precision-engineered cold exposure via the Clearlight Plunge.

“When heat, cold, and light are designed to work together, the body responds more efficiently. The Clearlight Plunge completes this equation,” said founder Dr. Raleigh Duncan.

The Clearlight Plunge is doctor-designed and science-backed, featuring:

▪️ A powerful 36°F–104°F temperature range
▪️ Integrated ozone sanitation and dual filtration
▪️ SmartLife app control for effortless operation
▪️ Premium craftsmanship with stainless steel and Canadian cedar
▪️ Plug-and-plunge simplicity with no plumbing required. Simply fill it, plug it in, set the temperature, and plunge.

This is so much more than a product announcement; this is a shift in how wellness is experienced at home.

From elite athletes to everyday high performers, the future of recovery is integrated, intentional, and finally, it’s complete.

Read full announcement here

…Welcome to the next evolution of wellness because true recovery doesn’t happen in isolation.