Women who wear bras have an increased risk of getting breast cancer

Posted by ryan at 07:50 PM in . | 0 Comments

From the book Dressed to Kill by by Singer and Grismaijer:

* Women who wore their bras 24 hours per day had a 3 out of 4 chance of developing breast cancer (in their study, n=2056 for the cancer group and n=2674 for the standard group).
* Women who wore bras more than 12 hour per day but not to bed had a 1 out of 7 risk.
* Women who wore their bras less than 12 hours per day had a 1 out of 152 risk.
* Women who wore bras rarely or never had a 1 out of 168 chance of getting breast cancer. The overall difference between 24 hour wearing and not at all was a 125-fold difference.

I am looking into this study further, but over 4,000 people is a lot. They hypothesize that wearing a bra impaired lymphatic flow, which I buy as a way wearing a bra could increase the chances of getting breast cancer.