Which of the following is NOT a type of heat illness?

Heat hypertension is not recognized as a distinct type of heat illness. In the context of heat-related illnesses, the correct terms include heat stroke, heat exhaustion, and heat cramps.

Heat stroke is a severe condition where the body overheats, leading to a failure of thermoregulation, potentially resulting in organ damage or death if not treated promptly. Heat exhaustion involves symptoms like heavy sweating, weakness, and dizziness, occurring due to prolonged exposure to high temperatures and inadequate fluid intake. Heat cramps involve painful muscle contractions, often due to rapid loss of salt and fluids during sweating.

Heat hypertension, however, is not a medically accepted categorization of heat illness, which is why it is the correct answer to the question. Understanding the legitimate types of heat illnesses is crucial for recognizing signs and symptoms, enabling proper treatment and prevention measures during physical activity in hot environments.