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Early Puberty Doubles in a Decade

The issue is is alarming for both medical and psychosocial reasons. Studies suggest that earlier puberty, as measured by the age at first menstruation, can slightly increase the risk of breast cancer, probably because it results in longer lifetime exposure to the hormones estrogen and progesterone, which can feed some tumors.

As reported in The New York Times, overweight girls were more likely to have more breast development, the study showed. But Dr. Biro said he did not think weight was the whole story. He said it was possible that environmental chemicals were also playing a role, and added that he and his colleagues were now studying the girls’ hormone levels and lab tests measuring their exposures to various chemicals.

“It’s certainly throwing up a warning flag,” Dr. Biro said. “I think we need to think about the stuff we’re exposing our bodies to and the bodies of our kids. This is a wake-up call, and I think we need to pay attention to it.”

Related: Which Plastics are SafeGreen Girl Disposes of Endocrine Disruptors,

Read more: Cancer, Children, Diet & Nutrition, Eating for Health, General Health, Health, Health & Safety, News & Issues, Women's Health,

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Melissa Breyer

Melissa Breyer is a writer and editor with a background in sustainable living, specializing in food, science and design. She is the co-author of True Food (National Geographic) and has edited and written for regional and international books and periodicals, including The New York Times Magazine. Melissa lives in Brooklyn, NY.


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3:14AM PDT on Mar 28, 2013

Get rid of all the BPA (Bisphenol A)

3:11AM PDT on Mar 28, 2013


1:19PM PDT on Mar 27, 2013

Thanks for the great article, interesting and informative, something to think about.

5:46AM PDT on Aug 3, 2012

With all the food additives out there and GMO foods I am NOT surprised!

9:32AM PST on Jan 15, 2012

this is why a menstuating doll is needed., who wants to help me make such a toy?

11:18AM PST on Dec 4, 2011

thanks for the article!!!

4:32AM PST on Nov 13, 2011

Thanks for the article.

2:57PM PDT on Jun 13, 2011

Very interesting and a bit unsettling. Thanks Melissa.

5:31PM PDT on Sep 16, 2010

This is disturbing

7:51PM PDT on Sep 15, 2010

probably because of obesity

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Disclaimer: The views expressed above are solely those of the author and may not reflect those of
Care2, Inc., its employees or advertisers.

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Ticks are nasty. Just think of the wildlife that don't get treatment :(

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