I am scared to death of developing Parkinson's Disease. And the reason is pretty ridiculous, I admit. I resemble no one in my family but my paternal grandmother Ruth, whose middle name I also share. We have had the same hands, the same feet and recently my aunt gave me a picture of Grandma Ruth in her 20's. She could be my twin. In her 50's she developed the degenerative neurological disease and by the time I was old enough to communicate, it was full blown. She was shaky, her tongue was always hanging out of her mouth, her speech was slurred and slow. For a while, I was actually sort-of afraid of her. So, regretfully, I never really got to know one of my grandmothers. It was only last year that I learned she was an English teacher (I knew she taught history, but not that she also taught English; this explains why my dad had me quoting Shakespeare at the age of three). And as much as my dad tells me he thinks the factors leading to her Parkinson's were environmental, and no genetic link has been proven, I still worry that someday, I will be shaky Grandma Emily, unable to communicate with my grandchildren.
A new study at least makes me feel a little better about all of this.
Research out of Beth Israel Medical Center in New York found that longer exposure to the body's own hormones, including estrogen, may help protect the brain cells that affected by Parkinson's.
The disease occurs almost twice as often in men, and the study reports that women who menstruate for 39 years or longer are 25% less likely to develop Parksinson's, compared to women who were fertile less than 33 years. (For once, I am sort of glad I got my period at 11, now if I can just keep it going until I'm 50, I'll be golden.)
The study also found that women who have four or more children (like my Grandma Ruth) are at a higher risk for Parkinson's, possibly because "the post-partum period, which is typically one with lower levels of estrogen, subtracts from a woman's total fertile lifespan," according to the study's co-author Sylvia Wassertheil-Smoller, Ph.D., professor of epidemiology and population health and the principal investigator of the WHI study at Einstein.
Of course, this is one study in probably a million and a study tomorrow could say exactly the opposite, but, hey, it makes me feel a little better.
[Science Daily: Naturally Produced Estrogen May Protect Women From Parkinson's Disease]
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