Re: [Paddlewise] cold hand adaption

>From: "Robert C. Cline" <rccline_at_swbell.net>
>As for Schurke's experiment, I don't dispute that there is a process of
>acclimatization, or that there are physiological differences between
>populations or individuals descended from racial groups which have had
>10,000 years of exposure to a particular climate.  What I suggest is, that
>there does not appear to be any scientific articles by Schurke published, 
>or
>at least indexed in the scientific literature on the web; no evidence of
>controls, and actually not a very "scientific" experiment.

Interesting, and the cobwebbed hollows that pass for my memory prevent me 
from citing a source, but I thought I'd read somewhere that studies with 
Arctic fishermen had suggested there was actually a process of 
neovascularization (spelling?), that is the individuals actually grew 
additional blood vessels in their hands which allowed them to shunt greater 
quantities of warm blood into the extremities.
Sounds plausible to this layman - our muscles, red blood cell count, resting 
heart rate and so on certainly respond to exercise, exposure to altitude, 
etc. On the other hand, I suppose it could be a desperate rear-guard action 
by the last of the LaMarckist evolutionists, surrounded by Darwinists.
Any doctors or scientists on the list care to comment on the possibility of 
this "change in the phenotype"?

Philip Torrens
N49°16' W123°06'


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