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Sauna bathing and systemic inflammation.

Jari A Laukkanen1,2, Tanjaniina Laukkanen3

  • 1Institute of Public Health and Clinical Nutrition, University of Eastern Finland, P.O. Box 1627, 70211, Kuopio, Finland. jariantero.laukkanen@uef.fi.

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Regular sauna bathing is linked to lower C-reactive protein levels, a key inflammation marker. Increased sauna frequency showed a significant inverse association with serum C-reactive protein in men.

Keywords:
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Area of Science:

  • Cardiovascular Health
  • Inflammation Biomarkers
  • Lifestyle Medicine

Background:

  • Systemic inflammation, indicated by serum C-reactive protein (CRP), is a risk factor for cardiovascular disease.
  • Sauna bathing is a common practice with potential health benefits, but its association with inflammation markers requires further investigation.
  • This study examined the relationship between the frequency of sauna bathing and serum CRP levels in middle-aged men.

Discussion:

  • The findings suggest a potential anti-inflammatory effect of frequent sauna use.
  • The observed inverse association remained significant after adjusting for multiple cardiovascular risk factors and lifestyle variables.
  • Further research is needed to elucidate the biological mechanisms underlying this association.

Key Insights:

  • Higher frequency of sauna bathing (4-7 times/week) was associated with significantly lower mean serum C-reactive protein levels compared to less frequent use (once/week).
  • A dose-response relationship was observed, with increasing sauna frequency correlating with decreasing CRP levels.
  • The study included a large cohort of 2084 men aged 42-60 years without acute or chronic inflammation.

Outlook:

  • Investigate the specific physiological pathways through which sauna bathing may reduce systemic inflammation.
  • Explore the generalizability of these findings to different populations, including women and other age groups.
  • Conduct randomized controlled trials to establish causality between sauna bathing frequency and CRP reduction.