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the claim

Regular sauna use improves cardiovascular health in adults.

the verdict
CONTESTED PARTIAL
Recorded sources
6 sources for · 2 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that regular sauna use improves cardiovascular health in adults?

Partly. Reviews and observational syntheses suggest regular sauna bathing may be linked to reduced cardiovascular disease risk and improved vascular function, but this evidence is hedged and largely associative. Two small randomized trials in adults with stable coronary artery disease found that eight weeks of sauna bathing did not improve markers of vascular health, so the evidence is mixed and only partial.

Verdict: CONTESTED PARTIAL · 6 sources for, 2 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 6
Cardiovascular and Other Health Benefits of Sauna Bathing: A Review of the Evidence.
2018
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Laukkanen, J. A., Laukkanen, T., & Kunutsor, S. K. (2018). Cardiovascular and Other Health Benefits of Sauna Bathing: A Review of the Evidence.. doi.org. https://doi.org/10.1016/j.mayocp.2018.04.008

Evidence against · 2
Finnish Sauna Bathing and Vascular Health of Adults with Coronary Artery Disease: a Randomized Controlled Trial
2023
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Finnish Sauna Bathing and Vascular Health of Adults with Coronary Artery Disease: a Randomized Controlled Trial. (2023). doi.org. https://doi.org/10.1152/physiol.2023.38.s1.5729996

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More for · 5
Sauna use as a novel management approach for cardiovascular health and peripheral arterial disease
2025
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Sastriques-Dunlop, S., Elizondo-Benedetto, S., & Zayed, M. A. (2025). Sauna use as a novel management approach for cardiovascular health and peripheral arterial disease. doi.org. https://doi.org/10.3389/fcvm.2025.1537194

Does sauna bathing prevent chronic obstructive pulmonary disease or Alzheimer's disease? May adults with cardiovascular disease use a sauna? A systematic review
2024
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Sobczyk, M., Słaboń, M., Pasztelan, M., Pulikowski, J., Garbacz, K., Maciąg, M., Walczuk, J. K. v., Baran, J., Muca, A., & Marczak, A. (2024). Does sauna bathing prevent chronic obstructive pulmonary disease or Alzheimer's disease? May adults with cardiovascular disease use a sauna? A systematic review. doi.org. https://doi.org/10.12775/jehs.2024.70.49802

Does the Combination of Finnish Sauna Bathing and Other Lifestyle Factors Confer Additional Health Benefits? A Review of the Evidence.
2023
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Kunutsor, S. K. & Laukkanen, J. A. (2023). Does the Combination of Finnish Sauna Bathing and Other Lifestyle Factors Confer Additional Health Benefits? A Review of the Evidence.. doi.org. https://doi.org/10.1016/j.mayocp.2023.01.008

Sauna and risk of stroke
2018
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Sauna and risk of stroke. (2018). doi.org. https://doi.org/10.1212/wnl.0000000000005592

Non-pharmacological interventions for vascular health and the role of the endothelium
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Non-pharmacological interventions for vascular health and the role of the endothelium. (n.d.). cir.nii.ac.jp. https://doi.org/10.1007/s00421-022-05041-y

More against · 1
Finnish Sauna Bathing and Vascular Function in Adults with Coronary Artery Disease: Preliminary Analysis of a Randomized Controlled Trial
2021
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Finnish Sauna Bathing and Vascular Function in Adults with Coronary Artery Disease: Preliminary Analysis of a Randomized Controlled Trial. (2021). doi.org. https://doi.org/10.1096/fasebj.2021.35.s1.03590

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