If left untreated, heat exhaustion can progress to heat stroke, which is a medical emergency. If your symptoms worsen, last more than one hour or you start vomiting, call 911.

If someone shows signs of severe heat illness, call 911 immediately. People often confuse heat exhaustion and heat stroke, but they’re not the same.

Millions of people are under heat advisories again as a major heat wave spreads across large parts of the central and eastern U.S. in late July 2025. For many people, summer is a time for cookouts ...

Heat stroke is a condition caused when the body is overheated and cannot cool itself down. New Mexico ranks 26th in the U.S. for heat stroke care in high school athletics.

CHICOPEE, Mass. (WWLP) – If you are going to be spending a prolonged period of time in the heat, it is important to know the symptoms of heat stroke and heat exhaustion.

See the symptoms for heat stroke and heat exhaustion and what to do if you spot them. In temperatures above 90 degrees, don't use a fan to try to cool off. You'll actually make matters worse.

How to stay safe during heat waves – and the heat stroke warning signs to watch for by: Brian Bossak Professor of Public Health, College of Charleston, The Conversation ...

In 2021, a young family died of heat stroke on a California trail after setting out for a hike when temperatures were still in the 70s Fahrenheit (low to mid 20s Celsius).

Heat-related illnesses occur across a spectrum, and mild heat stress can quickly progress to life-threatening heat stroke if a person is exposed to dangerous conditions for too long.