Actively Recruiting
Cold Water and Decision-Making
Led by German Institute of Human Nutrition · Updated on 2026-04-21
40
Participants Needed
1
Research Sites
70 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
The behavioral within-subject cross-over design study "CoVa" aims to investigate the effect of a short-term full-body cold-water immersion vs. warm-water immersion control on value-based choice, psychological well-being, and peripheral physiology.
CONDITIONS
Official Title
Cold Water and Decision-Making
Who Can Participate
Eligibility Criteria
You may qualify if you...
- 18-40 years of age
- Consent to participate
- Fluency in German
- Physically and mentally healthy
- BMI 18-30 kg/m2
- Normal day-night rhythm
You will not qualify if you...
- Raynaud syndrome
- Cold urticaria
- High resting heart rate (>160 beats per minute)
- Acute infection
- Diagnosed current or former illnesses of brain and mind, heart and blood circulation, gastrointestinal system, endocrine system, or other serious past or present medical conditions
- Wearing of medical devices (e.g., pacemaker)
- Fear of blood, needles, or phlebotomy
- Allergies to plasters, gels, and other medical equipment
- Allergies to commercially available liquid meals (e.g., shakes, yfood Labs GmbH)
- Recurrent intake of medication which affect metabolism
- Regular nicotine consumption (e.g., vaping, cigarettes)
- Excessive alcohol consumption (>14 servings/week)
- Recent illegal drug consumption (within 2 weeks prior)
- Strong mental or physical stress
- Excessive exercise (>2 h high-intensity exercise/day)
- Pregnancy or breastfeeding
- Inability to wear skin-exposing swimwear, e.g., for religious reasons
- Affinity for winter swimming, cryotherapy, breathwork (>3 times/year)
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
German Institute of Human Nutrition Potsdam-Rehbruecke
Nuthetal, Germany
Actively Recruiting
Research Team
T
Trust Centre of the Human Study Centre Recruitment Officer
CONTACT
M
Mine Schmidt
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
CROSSOVER
Primary Purpose
BASIC_SCIENCE
Number of Arms
2
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