Identifying Heatstroke

Heatstroke—a severe heat illness—is life-threatening and can lead to serious organ damage (heat injury) or death, so be on the lookout for the following signs and symptoms.

If you or your teammate are experiencing complications related to heatstroke, it’s important to start the whole-body cooling process immediately and call emergency medical services.

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Published on: June 4, 2021


Heatstroke often occurs after heavy work, training, or exercise in the heat. Symptoms include confusion, memory lapses, trouble performing simple tasks, slurred speech, fatigue, weakness, muscle cramps, headache, irritability, agitation, heavy sweating, nausea, vomiting, rapid pulse, dizziness, or seizures.

Pay attention! The sooner heatstroke is tended to, the better! Notice tone of voice and react with care and quick action. Rapid, aggressive cooling is lifesaving.

If you or a team member aren’t feeling well during physical activity in the heat or humidity, don’t dismiss it as a sign of weakness. Underlying signs and symptoms might lead to more health complications.

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