Heat Exhaustion Definition: What the Medical Term Means
The phrase "heat exhaustion" gets used loosely. People say it after a hard hike, a long shift in a warm kitchen, or a bad afternoon in the sun. Sometimes they mean a textbook case. More often they mean something a bit milder, or a bit more serious, and the looseness ends up mattering — because the definition of heat exhaustion is what tells you whether you can manage the situation at home, when to watch closely, and when to call for help.
This article walks through what doctors mean by the term, the elements of the medical definition, and where heat exhaustion sits on the wider heat illness spectrum.