What is heat illness and what are the different levels?

There are several different levels to heat illness. It can start out relatively mild having fatigue and some of the milder symptoms and progress to what we call heat exhaustion which includes many of the signs and symptoms including nausea, vomiting, fatigue, flushing, incoherence and can lead you into what we call heat stroke. That’s when you have altered mental status and it can lead to collapse and rarely but can lead to death. Heat stroke is a medical emergency. All these levels of heat illness are preventable by recognizing the signs early and having early treatment..