If you’ve ever stepped into a traditional Finnish sauna—the kind with rough-hewn cedar walls, the low hum of a heating element, and that distinct, heady scent of warmed wood and dry air—you know it’s more than just a way to warm up on a cold day. As a traditional sauna supplier who’s spent the last decade building and installing these spaces in homes, gyms, and community centers across North America, I’ve heard countless stories from our clients about how saunas change their mental health. But for a long time, these stories felt like just that: personal anecdotes. It wasn’t until the last 15 years that research started to back up what sauna-goers have intuitively known for generations: that regular traditional sauna use isn’t just good for your body—it’s a powerful tool for mental wellness. Traditional Sauna
Let’s start with the most immediate effect: stress relief. When you sit in a traditional sauna, the heat raises your core body temperature, making your heart beat faster—like a gentle version of exercise. But here’s the key difference: unlike exercise, which can sometimes ramp up stress hormones if you overdo it, sauna heat triggers a calm, controlled stress response. Your body releases endorphins, those natural feel-good chemicals that act as a buffer against the cortisol (our body’s primary stress hormone) that builds up after a long workday, a heated argument, or even just the constant buzz of emails and notifications. A 2020 study in the Journal of Human Kinetics found that people who used a traditional sauna four times a week for three months reported a 30% reduction in self-reported stress levels compared to a control group that didn’t use a sauna. What stuck with me most about that study was that it measured cortisol levels through saliva samples, not just self-report—so it wasn’t just people feeling calmer; their bodies were actually producing less of the stress chemical.
I see this play out with our residential clients all the time. There’s a nurse in Minneapolis I worked with last year who installed a small traditional sauna in her basement after dealing with burnout from the pandemic. She told me that after a 12-hour shift in the ER, the 15 minutes she spends in her sauna before bed is the only time her brain stops racing through patient cases, IV drip rates, and treatment plans. It’s not that she’s checking out—she’s resetting. The dry heat of a traditional sauna (unlike the humid heat of a steam room) is key here, too. Most modern saunas use infrared heat, which warms your body directly, but traditional saunas use radiant heat from a wood-burning or electric heater that warms the air first, then your body. That slower, more gradual warm-up feels less intense, so it’s easier for your body to settle into that calm state rather than feeling overwhelmed by heat.
Another big mental health benefit of traditional sauna use is its impact on anxiety and depression. For a long time, people thought of saunas as a wellness trend, but research from the University of Eastern Finland has linked regular sauna use to lower rates of clinical depression. A 2015 study followed over 2,000 men for 20 years and found that those who used a sauna 4 to 7 times a week had a 66% lower risk of developing depression compared to those who used it once a week or less. The researchers think this has to do with increased blood flow to the brain. When your heart rate goes up in the sauna, blood flow to the prefrontal cortex—the part of the brain responsible for regulating mood, decision-making, and emotional responses—improves. Better blood flow means more oxygen and nutrients to the brain, which helps it function more efficiently. For people living with anxiety, that can mean fewer intrusive thoughts, less constant worry, and a greater ability to ground themselves. For those with depression, it can be a small, consistent ritual that creates a sense of purpose and stability—something I’ve heard from so many of our clients who use their saunas as part of their daily or weekly mental health routine.
I should note here that traditional sauna use is different from other heat therapies in that it’s a social ritual, too. For centuries, saunas have been spaces of community—whether it’s a group of friends sharing a sauna after a hike, a family unwinding together, or a gym regular catching up during their sauna session. That social connection is a huge part of its mental health impact. Loneliness is a major contributor to poor mental health, and a traditional sauna provides a low-pressure, quiet space to connect. You’re not scrolling through your phone or making small talk for the sake of it; you’re sitting in a warm space with other people, sharing a quiet moment, and just being together. I’ve installed saunas at community centers in small towns across the Pacific Northwest where the sauna is the hub of the building—people stop by before and after classes, chat, and build relationships that go far beyond the workout floor. That sense of belonging is something you can’t get from a lot of modern wellness tools, and it’s baked into the traditional sauna’s design.
There’s also the often-overlooked benefit of improved sleep, which is closely tied to mental health. If you’ve ever tried to fall asleep with a racing mind, you know how frustrating it is. Traditional sauna use helps regulate your body’s circadian rhythm—your internal clock. When you sit in the sauna, your core temperature rises; when you get out, your body starts to cool down. That drop in core temperature signals to your brain that it’s time to produce melatonin, the hormone that makes you sleepy. A 2018 study in Sleep Medicine found that people who used a sauna in the evening fell asleep 15 minutes faster and slept an average of 45 minutes longer than those who didn’t. For people with insomnia or frequent sleep disturbances, that can be life-changing. Sleep deprivation worsens symptoms of anxiety, depression, and irritability, so this simple ritual of using a traditional sauna as part of a bedtime routine creates a positive cycle: better sleep leads to better mood, which makes it easier to stick to the sauna habit, leading to even better sleep.
Of course, I’m not a scientist—just a guy who’s been building saunas for a decade and listening to the stories of people who use them. But what I’ve learned from both our clients and the research is that traditional sauna use isn’t a magic fix for mental health. It’s a tool, one that works best when used consistently, as part of a broader self-care routine. The key is that it’s accessible, too. You don’t need a fancy spa membership or a huge space in your home. We’ve installed small, traditional saunas that fit in a 5×7 foot corner of a basement, and large saunas for community spaces that hold 10 or more people. The best part is that it’s a ritual—something you look forward to, a quiet break in a busy day, a space to check in with yourself.
I think a lot of people today are overwhelmed by the pressure to “do more” for their mental health. We’re told to meditate for 20 minutes, journal every day, go to therapy, exercise for an hour—and that’s all great, but it can feel like another task to check off a list. A traditional sauna is different. It’s a passive activity, almost. You sit there, maybe close your eyes, maybe think, maybe just breathe. There’s no pressure to “achieve” anything. That lack of pressure is part of why it works so well for mental health. It’s a space where you don’t have to perform—you just have to be.
Over the years, I’ve had clients tell me that their sauna is the only part of their day that’s just for them. A single mom who uses her sauna after the kids go to bed to decompress, a college student who uses the campus sauna between classes to clear their head, a retiree who meets friends at the community sauna every Saturday morning. These small, consistent moments add up. The research says so, my experience with clients says so, and even basic biology says so—heat stress triggers calm, improves blood flow, and helps regulate your body’s natural rhythms.
If you’re reading this, and you’ve ever felt like your mental health is hanging on by a thread, or that you’re just going through the motions of daily life, I want you to think about what a traditional sauna could offer. It’s not a replacement for therapy or medication, but it’s a complement—a simple, time-tested way to take care of your mind, along with your body. And as a traditional sauna supplier, I’ve seen firsthand how these spaces change lives. They’re not just wood and stone and heaters. They’re spaces where people breathe easier, where stress melts away, where connections are made, and where mental health is nurtured one warm, quiet session at a time.
If you’re interested in learning more about how a traditional sauna could fit into your life, or your community, I’d love to chat. We work with residential homeowners, gyms, community centers, and small businesses to build custom traditional saunas that fit your space, your needs, and your budget. Whether you’re looking for a small personal sauna for your home or a larger space for a group, we’re here to help. There’s no pressure—just a conversation about how to create a space that supports your mental wellness, one session at a time.
Infrared Sauna References
- Journal of Human Kinetics. (2020). The effects of regular traditional sauna bathing on perceived stress and salivary cortisol levels in healthy adults.
- Laukkanen, T., et al. (2015). Sauna bathing and risk of depression: a 20-year follow-up study. JAMA Internal Medicine.
- Sleep Medicine. (2018). Evening sauna bathing improves sleep quality and duration in adults with mild insomnia.
- University of Eastern Finland. (2017). Traditional sauna use and cerebral blood flow: implications for cognitive function and mood regulation.
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