evolution and aging

Dawn DawnC at bigfoot.com
Sat Mar 29 10:19:56 EST 1997


Jan Coetzee wrote:
> 
> Has it occurred to anyone that aging may be the consequences of "evolution"
> taking place in the body. For example take hair follicles. Assume that
> every one are born with two kinds of follicles. Normal and gray pigmented.
> With time subtle changes in the bodies chemistry cause the gray pigment
> follicles to dominate.  Finally you end up with gray hair. If this is true
> for most cells in the body this idea could explain aging.
> 
> Jan(John)

While many people have proposed an evolutionary significace to aging
(may be an anti-cancer mechanism, etc.), THAT is not why we get grey
hair (i.e., we are not born with two kinds of hair follicles and one
begins to dominate.)
-- 
-Dawn-
Time is the best teacher. Unfortunately, it kills all of its students.
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