Heat illness

Heat illness or heat-related illness is a spectrum of disorders due to environmental exposure to heat. It includes minor conditions such as heat cramps, heat syncope, and heat exhaustion as well as the more severe condition known as heat stroke.

Classification

A number of heat illnesses exist including:

  • Heat stroke - Defined by a body temperature of greater than 40 °C (104 °F) due to environmental heat exposure with lack of thermoregulation. Symptoms include dry skin, rapid, strong pulse and dizziness.
  • Heat exhaustion - Can be a precursor of heatstroke; the symptoms include heavy sweating, rapid breathing and a fast, weak pulse.
  • Heat syncope - Fainting as a result of overheating.
  • Heat edema
  • Heat cramps - Muscle pains that happen during heavy exercise in hot weather.
  • Heat rash - Skin irritation from excessive sweating.
  • Heat tetany - Usually results from short periods of stress in intense heat. Symptoms may include hyperventilation, respiratory problems, numbness or tingling, or muscle spasms.
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    Odessa American 27 Mar 2025
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    The Times of India 27 Mar 2025
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