On days like today (high of 20°F in New York City), I often wonder how close I am to hypothermia. Wikipedia defines three stages of a cooling body temperature: Stage 1 (1-2°C below normal body temperature): light shivering and goosebumps (which are ineffective in humans) Stage 2 (2-4°C below normal body temperature): with strong shivering,Continue reading “On hypothermia”