Symptoms of Heat Exhaustion

Stage 1: Heat Cramps

  • Heavy Sweating
  • Fatigue
  • Thirst
  • Muscle Cramps

Stage 2: Heavy Exhaustion

  • Heavy Sweating
  • Faintness
  • Low Blood Pressure
  • Nausea
  • Low Fever
  • Headache
  • Dark Urine

When your body undergoes overexertion in hot weather, it sometimes cannot efficiently cool itself to retain a normal temperature.

Risk Factors for Heat Exhaustion

In addition to athletes, there are a few other factors that increase the risk of heat exhaustion:

  • Age – Young children and adults over age 65 are often unable to adjust to temperature changes as quickly as older children and adults, making them vulnerable to heat exhaustion.
  • Medications – Some types of drugs such as diuretics, sedatives, tranquilizers, stimulants, heart and blood pressure medications, and medications for psychiatric conditions pose an increased risk for heat exhaustion.
  • Health conditions – Individuals with certain medical conditions such as heart, lung, kidney disease, obesity or underweight, high blood pressure, diabetes, mental illness, sickle cell trait, alcoholism, or sunburn are also at increased risk.

How to Treat Heat Exhaustion

If heat cramps lead to heat exhaustion:

  • Rest in a cooler location.
  • Drink cool fluids.
  • Apply cold water to the skin.
  • Rest with legs elevated above the heart level.


Visit Doral Health & Wellness Urgent Care if signs or symptoms do not rapidly improve. Our medical team will be able to treat your heat exhaustion to help your body cool down properly. Our centers also have IV fluids available to help replenish essential electrolytes that are lost through excessive sweating.



  • Untreated heat exhaustion can progress to heatstroke or a temperature of 103°F or higher, a life-threatening condition that requires immediate medical attention. Heatstroke can cause permanent damage to the brain and other organs. If heat stroke is suspected, call 911 immediately.