Amy's Robot

3rd grade = puberty

A new study was just released in Pediatrics magazine that measures when American girls are hitting puberty to see if it's happening at an a younger age than it used to. It's definitely happening earlier, but what I found alarming is that for the purpose of this study, "earlier" means "at an age when I was still wearing jammies with feet."

The study included girls ages 6 to 8 in New York, San Francisco, and Cincinnati, and checked them to see if they had breasts yet. We're talking 1st to 3rd grade, here. The target demographic for My Little Pony and Strawberry Shortcake.

And Giant Gazongas Barbie, apparently. Because it turns out lots of these 7 and 8 year olds have breasts--like 18% of white girls, 31% of Latina girls, and 43% of black girls!

For a late bloomer like me, this is completely insane. I associate that first bra purchase more closely with learning to drive than with learning to add. It's entirely possible that, if I were a teenager today, I would be babysitting a 7 year-old whose boobs were bigger than mine. I can't even imagine how girls who are still figuring out how to avoid wetting the bed are dealing with suddenly having pubic hair.

The causes aren't completely clear, but everyone suspects it's mostly due to obesity and chemicals in food and the environment like xenoestrogens and bovine growth hormone that mess with your endocrine system and do crazy things like make 7 year-old girls develop breasts. It was mostly the overweight girls in the study who were reaching puberty at such early ages, and the scientists say they're going to measure all the girls' hormone levels and see what chemicals they'd been exposed to.

Even though this new research suggests lucrative new product lines for busty elementary schoolers, I'd rather not see displays of Dora the Explorer training bras at Target.

categories: Education, Environment, Food, Gender, Health, Science
posted by amy at 4:08 PM | #