Heatstroke is a very dangerous condition caused by the body overheating. A person suffering heatstroke requires immediate treatment because it can be life-threatening. Learn more about the key warning signs below:

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High body temperature. A body temperature of 103 degrees F or higher is the main sign of heatstroke.

Headache. Heatstroke often causes a throbbing headache.

An altered mental state. Signs include confusion, slurred speech, agitation, irritability, delirium, and seizures. Fainting, loss of consciousness, and even coma can also occur.

Skin changes. The skin often flushes and turns red. In heatstroke caused by hot weather, the skin will feel hot and dry to the touch. If caused by strenuous exercise, the skin may feel moist.

Rapid breathing. Breathing may become rapid and shallow during heatstroke.

Nausea and vomiting. A heatstroke victim often feels sick to their stomach.

Rapid and strong pulse. This is caused by the heart beating faster in an effort to use blood to cool the body.

How to Help:

Don’t ignore heatstroke! Call 911 or your local emergency services number for help. Since heatstroke is a medical emergency, you should take immediate action to cool the overheated person while waiting for treatment:

• Move the person to a cooler place, preferably air-conditioned
• Remove excess clothing
• Help lower the person’s temperature with wet, cool cloths or a cool bath
• Do not give the person anything to drink
• Do not use a fan unless heat index temperatures are below the high 90s

Tips to Prevent Heatstroke:

• Stay cool: Limit outdoor activity to morning and evening hours, wear lightweight, loose-fitting clothes, and stay in an air-conditioned place as much as possible. Consider going to the mall, public library, or cooling shelter if your home does not have air conditioning.
• Stay hydrated: Drink plenty of fluids, such as water or sports drinks
• Stay informed: Check your local news for extreme heat alerts