What is a key factor to prevent hypothermia in cold environments?

Staying dry and covered is crucial in preventing hypothermia in cold environments because moisture can significantly increase heat loss from the body. When clothing or skin becomes wet—whether from sweat, rain, or immersion in water—the body loses heat much more rapidly than when it is dry. Wet clothing conducts heat away from the body, making it harder to maintain a stable core temperature.

Moreover, covering the body with insulation that retains heat while keeping moisture away is essential for maintaining warmth. Layers of clothing that trap air and provide insulation work best when dry. This is particularly important in cold environments where exposure to wind can exacerbate heat loss.

While other factors like hydration and nutrition play a supportive role in overall well-being and energy levels, they do not directly address the immediate risks posed by cold and wet conditions as effectively as staying dry and covered does.