Now this was a fascinating story! I don’t even know what insight to draw from this story. Mostly it’s just fascinating and I think more people should know about this stuff. It’s the story of the Pill, women’s birth
control. This story has it all –
science, fiction, politics, and betrayal.
As with Gladwell’s other articles, this weaves together several plot
lines: of the Pill inventor, John Rock, the religious perspective (of the
inventor and the Pope), the science of menstruation, and cancer. Trying to summarize this succinctly will be a
challenge, but here it goes.
John Rock was a devout Catholic and wanted to help people
utilize the rhythm method, a natural form of birth control condoned by the
church. His solution was a “natural”
one, the use of natural hormones in a pill that allowed for predictable periods
of fertility. Somehow he and his
coworkers decided on a 4 week cycle.
This is curious because it raises the question of how frequent
menstruation is naturally. An academic
spent a few years studying the Dogon people of Mali, in Africa who were
determined to be, for all practical purposes, unchanged by the modernization of
the rest of the world. Women from this
culture rarely menstruated as they spent most of their time either pregnant or
breast feeding (which inhibits menstruation).
To cut to the chase, The Dogon women averaged one period per year until
age 35, then four per year until menopause for a lifetime total of about 100
menstruations. This is roughly 25% of
the average contemporary Western women who menstruates some 350 to 400 times
per year!
Ok, enough about menstruation. Why does this matter you ask – cancer. Every period corresponds to the production of
huge numbers of cells. More cell growth
and production means more chances for cells to wrong. American women are six times more likely to
have breast cancer than corresponding Japanese women. Why?
The fact that Japanese women started menstruation two years later (16
years old rather than 14) accounts for 40% of the difference. Throw in higher weight at menopause and lower
estrogen production (which could be due to their lower fat diet) and there is
no difference. Fortunately researchers
are working on other forms of birth control that work to reduce lifetime
menstruations.
The book: Malcom Gladwell's What the Dog Saw.
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