I have a question: Does body temperature have an effect on the rate of heat transfer? I think "Yes", and if so, as the body cools does the percentage of heat lost through the head increase? I think "Yes" to that question also.

Quote:
4. "If your feet are cold, put on a hat." Fact: We do not lose more heat from our heads than from any other portion of the body with the same surface area.
That last statement assumes the various surface areas have the same temperature. If they do have the same temp, then heat lost per square inch should be the same. But what if the two skin surfaces are not at the same temperature?

My theory is that once your feet are cold, heat lost through your head is already starting to increase as a percentage of skin surface area -- maybe just a little; but as your body starts to shut down it's (non-essential) extremities the primary skin surface with heat to give up is the head.

Just a theory, I'm no scientist and I don't play one on TV (or on the internet).
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Okay, what’s your point??