What is a key warning sign of heat stroke versus heat exhaustion?

Lack of sweating and very hot skin.

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  1. Heavy sweating
  2. Mild thirst
  3. Lack of sweating ✔

Why: Heat stroke happens when the body cannot cool itself. Body temperature can reach 106 degrees F within 10 to 15 minutes. It is an emergency, so get medical help immediately.

Huh, didn't know that: Heat exhaustion often brings heavy sweating, thirst and dizziness.

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Why did it get so hot in the baseball stadium after the game? All the fans left.
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References

Answer: Lack of sweating. Heat stroke happens when the body cannot cool itself. Body temperature can reach 106 degrees F within 10 to 15 minutes. It is an emergency, so get medical help immediately.

  1. CDC Travelers' Health: Heat Illnesses wwwnc.cdc.gov/travel/page/heat-illnesses
    Lack of sweating
    Checked 2026-10-10.

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