Which warning sign points to heat stroke in a runner, not just a hard workout?

Confusion or slurred speech is a heat stroke warning sign.

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  1. Confusion or slurred speech ✔
  2. Mild thirst after the run
  3. Shivering and goosebumps

Why: Heat stroke affects the brain, so confusion, slurred speech, seizures or passing out are warning signs. Call 911 right away. Thirst alone is common after any run.

Huh, didn't know that: During heat stroke, body temperature can rise to 106 degrees Fahrenheit or higher in 10 to 15 minutes.

The dad joke
Why did the runner carry a thermometer? To see if they were on a hot streak.
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References

Answer: Confusion or slurred speech. Heat stroke affects the brain, so confusion, slurred speech, seizures or passing out are warning signs. Call 911 right away. Thirst alone is common after any run.

  1. Heat-related Illnesses | NIOSH | CDC www.cdc.gov/niosh/heat-stress/about/illnesses.html
    Confusion, altered mental status, slurred speech
    Checked 2026-10-12.

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