Final answer:
Heat stroke is the most life-threatening heat illness, characterized by hot, dry skin, rapid heart rate, confusion, dizziness, and loss of consciousness. Heat cramps and heat exhaustion are less severe and can be managed with rest and hydration.
Step-by-step explanation:
Heat stroke is the most life-threatening heat illness. It occurs when the body is unable to regulate its temperature, and the core temperature rises to dangerous levels.
Heat stroke is characterized by symptoms such as hot, dry skin, rapid heart rate, confusion, dizziness, and loss of consciousness. If left untreated, it can lead to organ damage and death.
Heat cramps and heat exhaustion, on the other hand, are less severe heat illnesses that can be managed with rest, hydration, and cooling measures.
Learn more about heat illnesses