Evidence map›Paper›PMID 40530059›Full record

ArticleFrontiers in psychiatry2025

Protocol for a systematic review and meta-analysis on the effects of cold-water exposure on mental health.

Steven Schepanski, Florian Batta, Marleen Schröter, Georg Seifert, Anna Katharina Koch

Abstract read
In one paragraph

Article in Frontiers in psychiatry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Steven SchepanskiCharité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charité Competence Center for Traditional and Integrative Medicine (CCCTIM), Berlin, Germany.
Florian BattaCharité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charité Competence Center for Traditional and Integrative Medicine (CCCTIM), Berlin, Germany.
Marleen SchröterCharité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charité Competence Center for Traditional and Integrative Medicine (CCCTIM), Berlin, Germany.
Georg SeifertCharité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charité Competence Center for Traditional and Integrative Medicine (CCCTIM), Berlin, Germany.
Anna Katharina KochCharité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charité Competence Center for Traditional and Integrative Medicine (CCCTIM), Berlin, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cold-water exposure has gained increasing popularity as a self-applied intervention for improving mental health and psychological well-being. While anecdotal evidence and popular media suggest potential benefits for reducing stress, anxiety, and depressive symptoms, the scientific evidence supporting these claims remains fragmented. This protocol outlines the methodology for a systematic review and meta-analysis aiming to critically appraise and synthesize the available evidence on the effects of CWE on mental health outcomes in adult populations, including both healthy individuals and those with clinical conditions. The review will examine both psychological variables and physiological stress markers in response to cold-water exposure interventions. Following PRISMA 2020 guidelines, a systematic search will be conducted in PubMed, PsycINFO, Embase, and Web of Science. Eligible studies will include randomized controlled trials, controlled clinical trials without randomization, cohort studies, and case-control studies. Risk of bias will be assessed using RoB1 for randomized controlled trials, ROBINS-I for non-randomized intervention studies, and ROBINS-E for observational studies. Random-effects meta-analyses will be conducted where sufficient data are available. The review will provide a structured quantitative synthesis of cold-water exposure's effects on mental health, helping to bridge the gap between popular claims and empirical evidence. The findings will inform future research, public health guidelines, and the development of safe and effective cold-water exposure protocols for clinical and wellness applications.

Indexed as

anxietycold-water exposurecold-water immersiondepressionice-bathingmental healthstress reductionswimming-based

Identifiers

PMID40530059
PMCPMC12171292

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.