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When the weather is blistering hot, Dr. David Claypool, a Mayo Clinic emergency medicine physician, says you need to listen to your body.
"What starts out as heat cramps can quickly move to heat exhaustion and then heatstroke when the body loses the ability to regulate and cool itself down," says Dr. Claypool. He adds a reminder that people should begin the day hydrated and keep hydrating. Dr. Claypool says if you feel hot but develop chills, that's a clear sign you need to slow down and seek cool air or water.
Heatstroke is a condition caused by your body overheating, usually as a result of prolonged exposure to or physical exertion in high temperatures. This most serious form of heat injury, heatstroke, can occur if your body temperature rises to 104 Fahrenheit (40 Celsius) or higher.
Heatstroke requires emergency treatment. Untreated heatstroke can quickly damage your brain, heart, kidneys and muscles. The damage worsens the longer treatment is delayed, increasing your risk of serious complications or death.
Heatstroke signs and symptoms include:
If you think a person may be experiencing heatstroke, seek immediate medical help. Call 911 or your local emergency services number.
Take immediate action to cool the overheated person while waiting for emergency treatment.
Heat exhaustion is one of the heat-related syndromes. Symptoms range in severity from mild heat cramps to heat exhaustion to potentially life-threatening heatstroke. Heat exhaustion can begin suddenly or over time, usually after working or playing in the heat, perspiring heavily, or being dehydrated.
Heat exhaustion signs and symptoms include:
If you think you're experiencing heat exhaustion:
Contact your health care provider if your signs or symptoms worsen or if they don't improve within one hour. If you are with someone showing signs of heat exhaustion, seek immediate medical attention if he or she becomes confused or agitated, loses consciousness, or is unable to drink. You will need immediate cooling and urgent medical attention if your core body temperature (measured by a rectal thermometer) reaches 104 Fahrenheit (40 Celsius) or higher.
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This article is written by Mayo Clinic staff. Find more health and medical information on mayoclinic.org.
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