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Heat Cramps

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Heat cramps facts

  • Heat cramps are intermittent, involuntary muscle spasms that occur in an individual who is physically active in hot weather.

  • Heat cramps, heat exhaustion, and heat stroke are collectively known as heat-related illness. Heat cramps are the least serious of the three, but still can be very painful and alarming.

  • Heat cramps usually affect the major muscles that are being stressed in a hot environment.

  • Individuals at risk for heat cramps include those who work or are active in a hot environment.

  • Individuals with impaired temperature control mechanisms, such as infants, young children, and the elderly, are also at a greater risk of heat cramps.

  • Heat cramps are the earliest symptoms of a heat-related illness.

  • Symptoms of heat cramps include profuse sweating with involuntary spasms of the large muscles in the body.

  • Heat cramps also may be a symptom of heat exhaustion.

  • The diagnosis of heat cramps is usually made by reviewing the patient history and identifying the muscle groups that are involuntarily spasming.

  • Treatment of heat cramps include resting, cooling the body, hydration, and stretching the muscles that are cramping.

  • Heat cramps can be prevented by avoiding exercise or work during the heat of the day, drinking plenty of fluids, and resting in cool or shaded areas when possible.