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Heatstroke is a potentially dangerous condition caused by overexposure to sunlight and/or high temperatures. An individual suffering from heatstroke will have a body temperature in excess of 105 degrees Fahrenheit (40.6 degrees Celsius) and may experience symptoms including rapid heartbeat, dizziness, confusion, anxiety or panic, and clammy skin. Dehydration commonly accompanies heatstroke and must be treated separately. Treating heatstroke requires immediate mobilization of the patient to a cool area and, if possible, immersion in a cool (but not cold) bath to help lower body temperature. Fluids and electrolytes should be administered as well. In extreme cases, patients suffering from heatstroke may go into cardiac arrest, in which case emergency medical attention should be sought immediately.