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Conditions That Increase Your Risk of Developing a Heat-Related Illness


Many conditions can increase your risk for developing a heat-related illness.

  • Environmental conditions that make it hard to stay cool
    • High outdoor temperature, or high indoor temperature without cooling devices such as fans or air-conditioning
    • High humidity
    • High outdoor temperature and no wind or very light wind
  • Intense physical exertion or having to wear heavy and restrictive work clothing in hot weather
  • Losing body fluids from sweating without drinking enough to replace those lost fluids and minerals
  • You have not been able to acclimate to a hot environment and you have had a heat-related illness in the past.


By Healthwise Staff
Primary Medical Reviewer William H. Blahd, Jr., MD, FACEP - Emergency Medicine
Specialist Medical Reviewer H. Michael O'Connor, MD - Emergency Medicine
Last Revised September 1, 2011

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