What is the first symptom of hypothermia?

• A. Blurred vision
• B. Nausea
• C. Shivering
• D. Fever

Answer: (C)

Shivering is the body's first response to cold and the earliest sign that hypothermia may be developing. When exposed to cold water or wind, muscles contract rapidly to generate heat, which is why you notice those tremors early on. Recognizing this early clue means you should move to warmth, dry out, and add insulating layers to bring your core temperature back up. The other signs listed—blurred vision, nausea, and fever—aren't typical first indicators of hypothermia. Fever is not a usual reaction to cold exposure, and blurred vision or nausea tend to appear later or in different situations rather than as the initial symptom.