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Related Experiment Videos

Alcohol and cold.

P O Granberg1

  • 1Department of Surgery, Karolinska Hospital, Stockholm, Sweden.

Arctic Medical Research
|January 1, 1991
PubMed
Summary
This summary is machine-generated.

Alcohol consumption can increase hypothermia risk by impairing the body's cold response and judgment. Despite a false sense of warmth, alcohol accelerates heat loss and reduces protective shivering, increasing dangers in cold environments.

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Area of Science:

  • Environmental Medicine
  • Toxicology

Background:

  • Alcohol consumption is a significant factor in hypothermia-related deaths, particularly in urban settings.
  • Despite a subjective feeling of warmth, alcohol's physiological effects on thermoregulation in cold are complex and debated.
  • Previous research on alcohol's impact on heat balance during cold exposure has yielded inconsistent findings.

Purpose of the Study:

  • To investigate the multifaceted effects of alcohol on human thermoregulation and physiological responses during cold exposure.
  • To clarify the risks associated with alcohol consumption during outdoor activities in cold environments.
  • To evaluate alcohol's influence on protective physiological mechanisms against cold injury.

Main Methods:

  • Review of experimental studies on human subjects exposed to cold environments.

Related Experiment Videos

  • Analysis of alcohol's effects on heat balance, shivering response, and cold diuresis.
  • Examination of alcohol's impact on judgment, risk-taking behavior, and physical working capacity in the cold.

    • Main Results:

    • Alcohol consumption can lead to enhanced heat loss, particularly during prolonged cold exposure combined with strenuous exercise.
    • Alcohol delays the onset and reduces the duration of shivering, a critical thermoregulatory response.
    • Alcohol intake augments cold diuresis, potentially decreasing blood volume and impairing physical capacity.
    • Ethanol may offer some protective effects against ventricular fibrillation at low core temperatures and in freezing cold injuries.

    Conclusions:

    • Alcohol consumption poses significant risks in cold environments by impairing thermoregulation, judgment, and protective responses, despite a transient feeling of warmth.
    • The potential benefits of alcohol in mitigating certain aspects of cold injury, such as cardiac issues and frostbite, require further investigation.
    • A strong warning is advised against the consumption of alcoholic beverages during outdoor activities in cold weather due to increased risks of hypothermia and other cold-related injuries.