Heat Illness

Heat exhaustion happens when the body loses too much water through sweating. This can lead to heat stroke. Heat stroke is a medical emergency. People who work in hot environments, athletes, and older people are at greater risk for suffering from heat illness.


  • Exhaustion.

  • Dizziness.

  • Fainting.

  • Muscle cramps.

  • Nausea.

  • Vomiting.

  • Chills and goose bumps.


  • You must drink increased amounts of water or other clear liquids during hot weather to prevent heat illness.

  • This is especially true if you work or do vigorous exercise in the heat. Up to a gallon of sweat can be lost every hour extremely hot or humid conditions.

  • You will stay cooler by reducing your effort and by dousing yourself with water often.

  • Certain drugs increase the risk of heat illness because they reduce sweating. These include antidepressants and antihistamines.

  • Be more cautious during hot weather.

  • Drink several glasses of water before, during, and after vigorous activity.


You have any heat-related problems.