• Tracy10 Tracy10
    July 30, 2008
    Does lying on stomach cause breast cancer?
    Tracy10 Tracy10
    July 30, 2008
    Is it true that breast cancer may be caused by poor circulation because people who exercise less tend to have more breast cancer? If that's the case, are people who lie on their stomach's more prone to breast cancer because the circulation to their breasts could be lowered by sleeping that way? Would you know if any such studies have ever been done to see if the position women sleep in has an effect on breast cancer? READ MORE

FROM OUR EXPERTS

  • PJ Hamel
    Health Guide
    July 30, 2008
    PJ Hamel
    Health Guide
    July 30, 2008

    Wow, you're making some pretty wild connnections here,Tracy. The main reason people who exercise more have less breast cancer is that they're generally thinner and have less circulating estrogen in their system. I've never heard of a study that addressed whether the position a woman sleeps in has any bearing on her risk of breast cancer. - PJH

  • Laurie Kingston
    Health Guide
    July 30, 2008
    Laurie Kingston
    Health Guide
    July 30, 2008

    It is so easy to become overwhelmed by all the things that have been linked to breast cancer, at least potentially. However, as far as I can discover, sleeping on one's stomach is not one of them.

    PJ is right about exercise and estrogen. That's why exercise has been proven to help prevent recurrence in women who had estrogen positive breast cancer but not for women (like me) whose cancer is estrogen negative. Exercise is still really valuable for all cancer patients (and everyone) though, for a whole host of reasons both physical and mental.

    As for sleeping - I think it is safe to say that the position we sleep in shouldn't keep us up at night!

    Take good care-

    Laurie


FROM OUR COMMUNITY

  • j.degreeve August 18, 2016
    j.degreeve
    August 18, 2016
    I do not have a definite answer for you, but I do know that male cyclists have an increased risk for testicular cancer, so I wouldn't trust that sustained pressure on such soft tissue is irrelevant. READ MORE
    • PJ Hamel
      August 19, 2016
      PJ Hamel
      Health Guide
      August 19, 2016
      So far as I know, there haven't been any clinical trials addressing this issue. I suspect there's a difference between the testes and breast tissue, as well; one is an organ, one is simply fat and fibroglandular tissue. So unless you're super-cautious, I wouldn't cease sleeping on your stomach for fear of developing breast cancer. PJH READ MORE
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