Beyond Heat: Rethinking the Scope of Sauna Research
Embracing the Multidimensional Nature of Sauna as an evidence-based integrative practice.
Stephen A. Colmant, PhD
Independent Researcher / Prescribing Psychologist
Las Cruces, NM, USA
Most current sauna research is grounded in a reductionist paradigm—treating the sauna primarily as an exposure to high ambient heat and measuring outcomes like heart rate, blood pressure, or metabolic shifts. While these studies yield meaningful insights, they often fail to account for the richly layered context in which sauna use unfolds. This article challenges the reductionist trend, arguing instead that sauna practice can be conceptualized as an evidence-based integrative practice, composed of multiple component processes—exercise, self-regulation variables, interpersonal factors, and metaphorical contextual elements—each of which is independently supported by a substantial empirical literature.
A dominant approach in sauna research is to isolate heat as the independent variable, controlling for temperature and humidity and tracking physiological markers. This reductionist approach has been essential for establishing physiological mechanisms; however, it is insufficient for explaining the full experiential and health impact of sauna practice. Focusing on control, quantification, and replicability imposes significant limitations. Stripped of its cultural, social, and psychological context, the lived sauna experience becomes a sterile laboratory stimulus, missing the elements that make sauna both unique and enduring.
Moreover, by foregrounding physiological endpoints, researchers often neglect or ignore the psychological, cultural, and ritualistic variables that mediate or moderate sauna’s effects. Sensations of relaxation, strengthened social bonds, and the meaning-laden rituals embedded in sauna traditions are rarely—even minimally—measured. Without these perspectives, many findings lack ecological validity and fail to capture the full spectrum of sauna’s influence on well-being.
The case for sauna as an evidence-based integrative practice builds upon an important insight: sauna is not a single-component intervention but an experiential tapestry woven from multiple, well-researched therapeutic factors. Its core elements—physical exercise, self regulation, close interpersonal interaction, and metaphorical contextual elements—carry a substantial evidence base for health benefits on their own.
Physical Exercise: The sauna experience, with its induced sweating and cardiovascular stimulation, parallels low- to moderate-intensity exercise, which is robustly linked to improved metabolic and cardiac health.
Self-Regulation: Saunas offer a contemplative, often silent space. Mindfulness and meditation are well-documented for reducing stress and enhancing emotional regulation—effects that sauna may facilitate through its sensory and ritual environment.
Close Interpersonal Interaction: Social connection, a key feature of traditional and contemporary sauna use, is strongly correlated with both mental and physical health outcomes. Sharing a sauna fosters intimacy and trust, breaking down barriers and nurturing community.
Metaphorical Contextual Elements: For many, sauna is deeply ritualistic, providing meaning, a sense of belonging, and symbolic cleansing. Sauna creates a symbolic context for spirituality—understood here as the process through which individuals construct meaning and purpose in their lives.
Heat and fire serve as universal metaphors for challenge and transformation, while the enclosed, shared environment promotes safety, authenticity, and connection. Intentionally enduring physical intensity—followed by rest, hydration, and cold immersion—functions as an embodied metaphor for goal formation, resilience, and commitment to personally meaningful aims.
Given that each of these dimensions is individually supported by substantial research, it is compelling to view sauna as an evidence-based integrative practice that combines the proven benefits of its parts into a potentially even greater whole.
Sauna use exists within a vibrant, multidimensional context. In Finland and other sauna-rich cultures, the sauna is a social hub, a locus of tradition, a place for contemplation, and a ritual woven into the rhythms of daily life and special occasions. The ambiance—the aroma of heated wood, the gentle hiss of water on stones, the interplay of light and shadow, the pause between silence and laughter—creates a sensory tapestry that shapes every moment.
Psychologically, sauna can foster deep relaxation, introspection, and altered states of consciousness akin to meditation or therapy. Socially, the shared vulnerability and intimacy of sweating together break down barriers, promote trust, and support meaningful conversation. These dimensions are not peripheral; they are central to the sauna’s meaning and effects. Any research that ignores them risks yielding an incomplete and possibly misleading picture of sauna’s true value.
My own backyard sauna by the pool has become a site of ritual and renewal. The process begins with preparation—the careful heating of stones, the setting aside of time, the anticipation. Entering the sauna, I feel the immediate quiet, a shift from the noise of daily life into a space that invites reflection. The ritual unfolds: the rising heat, the rhythm of steam enveloping the senses, moments of solitary thought or shared conversation, and the revitalizing plunge into cool water outside.
Each element—the environment, the sequence, the company—converges to create a profound sense of clarity and relaxation. It is not heat alone that delivers these effects, but the totality of the experience: anticipation, sensory immersion, collective participation, and symbolic cleansing. This layered complexity cannot be reduced to a single variable and underscores the need for research that honors the ritualistic and psychosocial dimensions of sauna use.
A recent BBC article on sauna’s health benefits offers a more nuanced take than previous popular coverage, acknowledging both promising findings and persistent uncertainties. Notably, Dr. Massey is quoted: “So there's definitely some benefit to using the sauna but the question is whether that's a long-term health benefit or more of a psychological one.”
This statement encapsulates a persistent and problematic dichotomy in health research and reporting: the false division between long-term health and psychological benefits. In reality, enduring improvements in psychological health—such as learning to think less extremely, consulting others rather than acting impulsively, or cultivating greater resilience—are themselves meaningful, long-term health outcomes. The separation of “physical” and “psychological” health is increasingly recognized as artificial, as decades of research affirm the bidirectional influences between mind and body.
The BBC article represents progress in recognizing sauna’s complexity, but also highlights the urgent need for research that systematically investigates its psychological, cultural, and ritualistic dimensions. Without this, our understanding of sauna’s true impacts will remain partial and potentially skewed.
The Sweat Therapy Theoretical Model, articulated in the Journal of Experiential Education (2009), provides a comprehensive framework for understanding sauna not simply as a heat exposure, but as a holistic, experiential process. The model positions sweat-inducing rituals—including saunas—within a spectrum of experiential therapies that bring together physical, emotional, social, and spiritual dimensions.
By embracing this model, researchers and practitioners can move beyond reductionist approaches and attend to the rich psychological and cultural layers that shape outcomes. This expanded perspective invites us to ask not only what measurable physiological changes occur, but also how ritual, symbolism, and social interaction contribute to well-being. The model thus enriches our understanding of why sauna remains a cherished practice across diverse societies and offers a blueprint for future research.
Call for Holistic Research: Toward a Multidimensional Science of Sauna
To truly advance the field, future studies must transcend reductionism and embrace sauna’s multidimensionality. This requires research designs that integrate qualitative methods, ethnographic observations, and measures of psychological and social outcomes alongside physiological markers. Theoretical frameworks like the Sweat Therapy Model should guide inquiry, ensuring that meaning, ritual, and context are not afterthoughts but central focus points.
Collaboration among health scientists, psychologists, anthropologists, and sauna practitioners will be vital for capturing the full richness of sauna experiences. Only by attending to the entire spectrum of influences—cultural, ritualistic, social, aesthetic, and psychological—can research do justice to sauna’s enduring appeal and therapeutic promise.
Sauna is much more than passive exposure to heat; it is a complex, multidimensional ritual intricately woven into human life. The limitations of current research highlight the urgent need for holistic approaches that account for cultural, psychological, and social factors as central, not peripheral, to health. The Sweat Therapy Theoretical Model offers a valuable blueprint, while personal and media accounts underscore the richness and complexity of sauna traditions. By embracing sauna as an evidence based integrative practice—an integration of empirically supported therapeutic dimensions—future studies can yield more accurate, nuanced, and transformative insights into this ancient practice.
References
Colmant, S. A. (2011). Sweat Therapy: A Guide to Greater Well-Being. Amazon. ASIN: B004NIFPA0).
Eason, E. A., Colmant, S. A., and Winterowd, C.L. (2009). Sweat Therapy Theory, Practice, and Efficacy. Journal of Experiential Education, Volume 32, 2 pp 121-136.
Rufo, Y. (2025 December 29). Do saunas really boost your health? BBC News. https://www.bbc.com/news/articles/c5yj3g0p26ro
Author Note
Stephen A. Colmant, PhD, is a prescribing psychologist and the author of Sweat Therapy: A Guide to Greater Well-Being. His work explores experiential, integrative approaches to mental and physical health.