Overheating during physical activity can lead to which condition?

• A. Dehydration
• B. Hyperthermia
• C. Hypothermia
• D. Hyperglycemia

Answer: (B)

Overheating during physical activity raises the body's core temperature above normal. When the heat produced by muscles isn’t offset by heat loss through sweating and skin blood flow, core temperature climbs, leading to hyperthermia. This is the condition you get directly from overheating. Dehydration can accompany overheating because sweating reduces fluids, but it is not the overheating condition itself. Hypothermia is the opposite—low body temperature—and hyperglycemia is high blood sugar, not tied to the overheating process.