Here's a couple of links I found relating to menstruation & cancer.  I found it 
interesting to read in the first article that when the birth control pill was 
being developed, they originally were intending to orchestrate it so that women 
only had one or two periods a year but changed it to a monthly cycle b/c women 
would see that as more "normal" and be more accepting of the pill.  So the 
makers of the pill clearly had the right idea that we shouldn't have periods so 
often but unfortunately that's now how it worked out in the end.

http://www.seven.com.au/sunrise/fact_060309_menstruation

http://cebp.aacrjournals.org/cgi/content/full/14/4/799

There are tons of links but I just don't have time to go through them all and 
find the most relevant/scientific ones to post here.

--
Margo


----------------------  Original Message:  ---------------------
From:    cillakat <[log in to unmask]>
To:      [log in to unmask]
Subject: Re: danger of not menstruating
Date:    Wed, 3 Oct 2007 15:32:46 +0000

> << Another woman suggested that menstruation is protective against
> certain cancers>>
> 
> nope.  women are designed to basically be pregnant or nursing our
> entire resproductive 'career'.   as long as menstrual cycling is
> suppressed by pregnancy or lactation it is a good thing.
> 
> It's when there is a shift in cycles without pressure from pregnancy
> or lactation that there could be concern.
> 
> 
> In environments that are closer to that in which we evolved, menstrual
> frequency is about 11% compared to the 80% of what we experience in a
> modern/current environment.    iow,  in an 'environment of
> evolutionary adaptation'  or that which might be closer to an EEA 'we'
> spend about 11% of our reproductive time cycling.....now 80%.   Of
> course those are just stats and may or may not be specific to any one
> person or population.
> 
> Katherine
> 
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