Heat stroke is a severe medical condition that occurs when the body overheats, typically due to prolonged exposure to high temperatures or strenuous exercise in hot weather. It is characterized by a body temperature exceeding 104°F (40°C) and can lead to symptoms such as confusion, rapid pulse, nausea, and loss of consciousness. Heat stroke is a medical emergency that requires immediate attention, as it can result in serious complications or death if not treated promptly. To prevent this problem, it is essential to stay hydrated, take breaks in the shade or air conditioning, and avoid strenuous activities during extreme heat.