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  • Winnipeg
  • Wellness

From Steam to Strength: Sauna’s Role in Respiratory Health

October 21, 2025 - by Setor Kunutsor

Sweating Out Sickness: How Sauna Supports Your Immune System
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As the days grow shorter and a crisp chill creeps into the air, our bodies brace for cold and flu season. We stock up on vitamin C, pull out cozy blankets, and remind ourselves to get enough rest. But there’s one time-honored ritual—steeped in both tradition and science—that might be the missing piece in your winter wellness routine: the Finnish sauna.

For centuries, the sauna has been a sanctuary of warmth and renewal. Beyond its obvious comfort, modern research now confirms what Finns have known for generations—sauna bathing can do far more than soothe sore muscles. It can strengthen the immune system, help the body fend off illness, and even reduce the risk of serious respiratory diseases.

Sauna: From Ancient Ritual to Modern Wellness Hero
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Step into a Finnish sauna and you step into living history. Imagine the rich scent of warm cedar, the gentle flicker of light on polished wood, and the deep, enveloping heat that seems to slow time itself. For thousands of years, these spaces have been more than just places to sweat—they’ve been communal gathering spots, sites of healing, and even sacred spaces where the mind and body are brought into balance.

Finnish people often say the sauna is their “second living room.” From small lakeside cabins to urban apartments, nearly every household has one [see study].

Historically, saunas played a central role in community life—from welcoming newborns into the world to providing a dignified setting for final farewells. Today, while much has changed, the sauna remains a powerful bridge between tradition and health science.

Now, thanks to decades of research, we understand how the sauna’s heat isn’t just relaxing—it’s triggering beneficial changes throughout the body. This includes improved circulation, enhanced immune surveillance, and a stronger defense against respiratory illness.

Sauna and Respiratory Protection: What the Science Shows
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Far from being a mere indulgence, regular sauna bathing has been shown to significantly reduce the risk of a variety of respiratory illnesses [see study].

  • Pneumonia: People enjoying 4 or more sauna sessions each week have a 37% lower risk compared to those with only one or fewer sessions weekly [see study].

  • COPD: Engaging in 3–7 sauna sessions per week is associated with a 38% lower risk [see study].

  • The common cold: Regular sauna use has been linked with fewer colds and milder symptoms [see study].

  • Benefits that persist despite major risk factors such as smoking, elevated inflammation, and socioeconomic disadvantage [see study 1; see study 2; see study 3; see study 4].

  • The protective effects of sauna on pneumonia grow even stronger when paired with regular physical activity [see study].

  • Preliminary evidence suggests that sauna use could help reduce the severity of COVID-19 [see study].

sauna interior

How Does Sauna Improve Immune and Respiratory Health?
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The health benefits of sauna bathing are underpinned by well-studied biological mechanisms:

  • Reduces systemic inflammation: lowering markers such as C-reactive protein [see study].

  • Boosts immune function: enhancing the activity and circulation of white blood cells [see study].

  • Builds resilience: repeated heat exposure helps the body adapt to physical stress and fight off infections more efficiently.

  • Improves lung function: heat exposure can open airways, improve ventilation, and reduce pulmonary congestion [see study].

How Often Should You Sauna for Immune Support?
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To unlock the strongest immune and respiratory benefits, aim for:

  • 3–7 sauna sessions per week

  • 15–20 minutes per session

  • Temperatures between 80–100°C (176–212°F)

Consistency is key—the benefits build over time and are most pronounced with frequent use.

Why the Spa Village Is the Perfect Place to Stay Well This Season
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At the Spa Villages, our authentic Finnish-style saunas offer a refuge of warmth and restoration. Here, you can strengthen your body’s defenses against seasonal illnesses while enjoying an immersive sensory experience—the deep, dry heat of the sauna, the calming aromas of eucalyptus in the steam rooms, and the gentle transition to the crisp outdoor air.

Whether you visit to recharge after a long week or as part of your wellness routine, each session is an opportunity to boost your health and reconnect with your inner calm.

Stay well this season—naturally.

TRY THE VILLAGE’S SAUNAS. BOOK NOW.

About the Author
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Setor Kunutsor

Setor Kunutsor BSc MD MPhil (cantab) PhD (cantab)
Professor, Evelyn Wyrzykowski Research Chair in Cardiology

Section of Cardiology, Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Saint Boniface Hospital, Winnipeg MB, R2H 2A6, Canada

Profile: https://umanitoba.ca/medicine/faculty-staff/setor-kunutsor

Dr. Setor K. Kunutsor is a physician-scientist based in the Section of Cardiology, St. Boniface Hospital, University of Manitoba, where he holds the Evelyn Wyrzykowski Research Chair in Cardiology. His clinical research focuses on the burden, prevention, and management of cardiovascular disease, with a special interest in the role of modifiable lifestyle factors such as physical activity, nutrition, cold water immersion, and sauna bathing. Dr. Kunutsor has led pioneering studies on the individual and combined health benefits of Finnish sauna use and exercise, contributing important insights into how these practices can synergistically improve health outcomes. He is a frequent speaker on the topic, having delivered talks and seminars, and authored numerous articles exploring the science and mechanisms underlying sauna therapy. His work has been widely featured in the media, including on the BBC and CBC.

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