From: CurtAdams@aol.com
Date: Thu Jul 18 2002 - 11:22:17 MDT
In a message dated 7/17/02 16:09:50, mlorrey@yahoo.com writes:
> Looking at the
>literature, you'll see that menarche age in the US
>(and in the rest of the world), seems to have dropped
>as vaccination and baby formula gained popularity in
>various locales.
>
The driving force is almost certainly amount of food consumed as
children. For any mammal species, the more you feed juveniles,
the sooner reproduction starts. People eat more and more each
year, so menarche age keeps dropping.
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