Status:
RECRUITING
Cold Water and Decision-Making
Lead Sponsor:
German Institute of Human Nutrition
Conditions:
Behavior
Stress
Eligibility:
All Genders
18-40 years
Phase:
NA
Brief Summary
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, psych...
Detailed Description
This randomized within-subject cross-over design behavioral study in cognitive neuroscience will employ an acute peripheral physiological intervention, i.e., a 10-minute full-body cold-water (10-16°C)...
Eligibility Criteria
Inclusion
- 18-40 years of age
- Consent to participate
- Fluency in German
- Physically and mentally healthy
- BMI 18-30 kg/m2
- Normal day-night rhythm
Exclusion
- 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
- 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)
Key Trial Info
Start Date :
August 28 2025
Trial Type :
INTERVENTIONAL
Allocation :
ESTIMATED
End Date :
February 28 2026
Estimated Enrollment :
40 Patients enrolled
Trial Details
Trial ID
NCT06908447
Start Date
August 28 2025
End Date
February 28 2026
Last Update
September 4 2025
Active Locations (1)
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1
German Institute of Human Nutrition Potsdam-Rehbruecke
Nuthetal, Germany