A third-variable problem? The following is from PubMed:
"Evidence is presented that undernutrition and hard physical work can affect the
natural fertility of populations, by the delay of menarche, a longer period of
adolescent subfecundity, a longer birth interval and an earlier age of
menopause."
Frisch RE.
Body fat, menarche, fitness and fertility.
Hum Reprod 1987 Aug;2(6):521-33
--
Beth Benoit wrote:
> Actually, it's usually the other way around: early puberty = late menopause
> and late puberty = early menopause. I have a source somewhere if you need
> it.
>
> Beth Benoit
> University System of New Hampshire
>
> > From: "Weisskirch, Rob" <[EMAIL PROTECTED]>
> > Date: Wed, 13 Jun 2001 11:46:19 -0700
> > To: "TIPS (E-mail)" <[EMAIL PROTECTED]>
> > Subject: When it flows and when it stops
> >
> > TIPSizens,
> >
> > Does anyone know if there is a connection between onset of menstruation and
> > onset of menopause? That is, if you go through puberty early, does that
> > mean that menopause will also occur early?
> >
> > Thanks,
> >
> > Rob Weisskirch
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