What is a Heat Stroke?

• Heat stroke is the most serious heat-related illness. 
• It occurs when the body can no longer control its temperature: the body’s temperature rises rapidly, the sweating mechanism fails, and the body is unable to cool down. 
• When heat stroke occurs, the body temperature can rise to 106°F or higher within 10 to 15 minutes. 
• Heat stroke can cause permanent disability or death if the person does not receive emergency treatment.

Causes of Heat stroke

• Exposure to hot, humid weather, especially for prolonged periods. 
• Increase in core body temperature brought on by intense physical activity in hot weather. 

https://www.mayoclinic.org/diseases-conditions/heat-stroke/symptoms-causes/syc-20353581 

https://www.cdc.gov/niosh/topics/heatstress/heatrelillness.html#:~:text=Heat%20stroke%20is%20the%20most,within%2010%20to%2015%20minutes.