Quote:Now, onto lumberjacks and tundra-tiny syndrome...
In cold weather, blood flow to the extremities is naturally reduced in order to maintain proper heat levels for internal organs (better to loose a few toes or fingers than cause damage to the exquisite folds of the lumberjack brain).
Though this natural protective process is normally generalized throughout the body in extreme cold (all extremities and epidermis are generally affected), localized warmth (with normal bloodflow) isn't difficult to achieve (think warm gloves).
Thus, during colder temperatures, an extremity which is warmly tucked away in anything well insulated or which is itself at warm temperature will maintain a robust pulsing of blood and lumberjack vigor.
Yes, there is that. But there is another phenomenon that might be at work: animals of the same species have evolved shorter and shorter limbs as you move away from the equator, so as to conserve body heat. What make ye of that, sir?
(Brilliant post, that last one, by the way.)
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