Cold & Hypothermia 101
We humans are warm-blooded, meaning that we have to keep our core temperature constant in order to function. When we are unable to do so, our body uses lets us know with goose bumps and shivering (the very first signs that our bodies are too cold; and of hypothermia). Since our core is well protected, the first places that we see cold-related injuries are our extremities (hands, feet, nose, and ears).
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