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Reputation: 70

Why are girls getting their periods so young today and what is the fallout from this change?

My daughter started hers at age 10 and her friends started at age 11 and 12. When I was young I and my girlfriends were all close together in starting between 13 and 15. What's going on?

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7 Answers

  • Icon_small
    Reputation: 1627

    To answer your second question about the fallout, there's evidence that early menarche in girls is linked to a higher risk of breast and ovarian cancer, especially if it accompanies late menopause. The longer those hormones are coursing through a girl's/woman's body, the greater chance she has of getting estrogen-related cancer.

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  • Avatar_default
    Reputation: 3

    Almost all commercially raised animal foods are full of hormones, including dairy. As well, there are many things like plastics, pesticides, etc. that are estrogen mimics. Best to avoid commercially produced meat and dairy and stick to organic, free range foods, and use only metal and glass containers (even the plastic liners in canned foods have estrogen-like chemicals in them).

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  • Picture_115_small
    Reputation: 1033

    The prevailing theory for this is that better nutrition actually has a lot to do with it. I believe 10 is still fairly young on average but remember that everyone is different. There are still young women starting puberty at 15. There isn't any evidence that eating organic will delay the onset of puberty far as I know. Not to mention starting puberty isn't exactly a disease and doesn't mean there is anything wrong with you. Additionally there may have been social pressure against disclosing information about ones cycle in the past.

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  • Image00666_small
    Reputation: 3564

    To learn more about hamish's answer below, try googling for "endocrine disruptors" or "xenoestrogens."

    The effects of these pollutants are pretty shocking. They've been linked to childhood obesity, breast cancer, prostate cancer, early onset puberty for females, and stunted genital development/low sperm count for males. Who knows what else we will eventually find out...

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  • Qlandav2ex_small
    Reputation: 4209

    I am repeating my answer to a related question from three months ago:

    "There is strong supposition that the increased chemical soup that children are being exposed to through products and processed foods are involved. Certainly the xenoestrogens in plastics and the phytoestrogens of increasingly modified foods (including high soy isolate inclusion) may be implicated in the early maturation and change in normal hormone growth cycles. Other sources include hormones in meat production and pesticides and other chemicals used on crops.
    For the rest of us (adults) this exposure could be affecting normal endocrine systems, aging, inflammation processes, disease, tumor growth and maturation."

    Reference:
    http://questionland.com/questions/16988-why-do-kids-girls-know-days-go-through-puberty-so-early

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  • Spaceship_small
    Reputation: 1812

    I asked this of my daughter's pediatrian several years ago, and was told that it is because of the better general health and nutrician in the USA. She said the general trend has been to lower starting ages due to good health in general.

    She didn't indicate that this was a problem or "bad", just as a result of improved health.

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  • Amy-small_small
    Reputation: 272

    Don't know if anyone mentioned this, but the original study that figured out that girls have their periods at age 12 or 13 was flawed.

    They looked at white, middle class girls in the same area. Zero diversity - and this was many moons ago.

    If the pool is broadened out to include a more diverse race/class bunch, most girls have their periods at 10 or 11.

    That and we're fatter and healthier and therefore ready to breed sooner. Goody.

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