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Hungry? You may be infertile, too, study says
Catherine McDiarmid-Watt |
Thursday, October 01, 2009 |
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Stock photo by gravityx9
While calorie restriction and exercise are promoted as the keys to longevity, running a negative energy balance risks compromising fertility.
In a study — the first of its kind — published in the September 21–25 issue of the Proceedings of the National Academy of Sciences, Meenakshi Alreja, associate professor of psychiatry and neurobiology at the Yale School of Medicine, and her colleagues looked into the molecular interactions that links hunger and infertility.
Her research reveals a molecular pathway that becomes amplified during conditions of low food availability, and thereby shuts down the activity of brain cells that control the onset of puberty, ovulation and fertility.
“Reproduction is expensive,” Alreja said. “We cannot afford to enter puberty and reproduce unless there is enough energy.”
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About Catherine: I am mom to three grown sons, two grandchildren and two rescue dogs. After years of raising my boys as a single mom, I remarried a wonderful man who had never had a child of his own. Unexpectedly, I found myself pregnant at 49!
Sadly we lost that precious baby at 8 weeks, and decided to try again. Five more losses, turned down for donor egg, foster care and adoption due to my age and losses - we have accepted that there will be no more babies in our house.
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While calorie restriction and exercise are promoted as the keys to longevity, running a negative energy balance risks compromising fertility.
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