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Women who breast-feed their children and later develop breast cancer are less likely to experience a cancer recurrence, compared to women who did not breastfeed.

Women who breast-feed their children and later develop breast cancer are less likely to experience a cancer recurrence, compared to women who did not breastfeed. Researchers analyzed over 1,600 women with breast cancer and found that those who previously breast-fed had a 30% overall decreased risk of breast cancer recurrence: this link was not as strong among women who breast-fed for less than 6 months. Women who breast-fed had a 28% reduced risk of dying from their breast cancer. Researchers speculate that women who breast-feed get less aggressive forms of breast cancer, although the link indicates correlation, not causation. Breast-feeding reduces a woman's number of menstrual cycles, thereby lowering her accumulated exposure to hormones that foster some cancer growth. Breastfeeding may also lead to cellular differentiation that makes breasts more resistant to cancer. (Previous research indicates that women who breast-feed reduce the risk of developing breast cancer by 5-10%.)

Journal of the National Cancer Institute, April 2015

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Title Annotation:SNAP SHOTS
Publication:Women's Health Activist
Date:Jul 1, 2015
Words:158
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