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Cold showers: the surprising new stress hack?

NCT ID NCT07611422

Knowledge-focused Sponsor: Catholic University of the Sacred Heart Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at whether taking cold showers regularly can improve how people cope with stress. About 120 healthy adults will either take a warm shower with a 30-second cold blast at the end, or just a warm shower. Some will be told the showers are beneficial, others won't get that information. Researchers will measure stress levels, heart rate, and well-being before and after four weeks.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
cold shower exposure
What this could lead to
If it works, this could point toward a simple, low-cost way to help people manage stress better.
What could go wrong
This is a small, early-stage study in healthy volunteers, not patients. Results may not apply to everyone, and the effect of cold showers on stress is still uncertain.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 120 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

May 2026

An estimate. Start dates often move.

Expected to finish

Oct 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 60 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria Participants will be eligible for the study if they meet the following criteria: * Age ≥ 18 years * Good general health status, self-reported and/or certified by a medical document (e.g., general medical certificate or sports medical clearance) * Willingness to participate for the full duration of the study (4 weeks) * Ability to understand and independently complete questionnaires and study diaries * Signed informed consent Exclusion Criteria Participants will be excluded from the study if they present: * Uncompensated cardiovascular, neurological, or endocrine conditions considered relevant to stress or cold exposure tolerance * Medical conditions contraindicating cold exposure (e.g., Raynaud's phenomenon, cold urticaria, etc.) * Pregnancy * Use of medications that may interfere with stress responses (e.g., beta-blockers, anxiolytics, systemic corticosteroids) * Acute or unstable psychiatric disorders * Inability to comply with the experimental protocol or complete study materials * Concurrent participation in other studies involving stress or physiological regulation interventions

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthy volunteers

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Università Cattolica del Sacro Cuore

    RECRUITING

    Milan, Italy

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