Tuesday, Aug 11, 2026 The claims desk. Receipts included. POWERED BY LENZ ↗
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Cold showers can improve selected outcomes, though broad benefits remain uncertain.

The Claim

Taking cold showers provides health benefits.

Verified by Lenz ·

The Short Version

Evidence supports limited benefits from cold showers, but not broad health improvement. A randomized trial found reduced self-reported sickness absence, while reviews report possible benefits for sleep, stress, and quality of life. Many findings come from cold-water immersion rather than showers, and evidence for immune, mood, and cardiovascular benefits remains inconclusive.

Caveats

  • Evidence from cold-water immersion cannot automatically be generalized to ordinary cold showers.
  • The reported 29% reduction concerned self-reported sickness absence, not fewer illness days or general health improvement.
  • Sudden cold exposure can trigger cold shock and cardiovascular strain, especially in people with heart or lung conditions.

The Receipts

  1. Regular cold shower exposure modulates humoral and cell ...

    sciencedirect.com

  2. Effects of cold-water immersion on health and wellbeing

    pubmed.ncbi.nlm.nih.gov

  3. Beyond the cold baths: contemporary applications of cold-water immersion in the treatment of clinical depression and anxiety

    cambridge.org

  4. Health effects of voluntary exposure to cold water - PMC - NIH

    pmc.ncbi.nlm.nih.gov

  5. Health effects of voluntary exposure to cold-water immersion in humans: a scoping review

    ncbi.nlm.nih.gov

  6. THE EFFECTS OF COLD SHOWERS ON HEALTH – A REVIEW OF THE SCIENTIFIC LITERATURE

    doi.org

  7. Effects of cold-water immersion on health and wellbeing

    journals.plos.org

  8. The Effect of Cold Showering on Health and Work: A Randomized Controlled Trial | PLOS One

    journals.plos.org

  9. Effects of winter sea bathing on psychoneuroendocrinoimmunological parameters

    pubmed.ncbi.nlm.nih.gov

  10. Dosages of cold-water immersion post exercise on functional and clinical responses: a randomized controlled trial

    pubmed.ncbi.nlm.nih.gov

+ 34 more sources — see the full list on Lenz

Filed Under

Cold Showers