Which heat illness happens when the body can no longer control its temperature?

Heat stroke is the most serious heat-related illness.

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  1. Heat stroke ✔
  2. Heat exhaustion
  3. Heat cramps

Why: Heat stroke happens when the body can no longer control its temperature and sweating may fail. It is a medical emergency that can cause lasting harm without fast treatment.

Huh, didn't know that: Body temperature may rise to 106 degrees Fahrenheit or higher within 10 to 15 minutes during heat stroke.

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Why did the runner bring ice cubes to practice? To keep their cool.
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References

Answer: Heat stroke. Heat stroke happens when the body can no longer control its temperature and sweating may fail. It is a medical emergency that can cause lasting harm without fast treatment.

  1. Heat-related Illnesses | NIOSH | CDC www.cdc.gov/niosh/heat-stress/about/illnesses.html
    Heat stroke is the most serious heat-related illness. It occurs when the body can no longer control its temperature
    Checked 2026-10-12.

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