History of breastfeeding associated with reduced risk of breast cancer recurrence

Women diagnosed with breast cancer who previously breastfed their babies had a 30 percent overall decreased risk of the disease recurring, according to a new Kaiser Permanente study published in the Journal of the National Cancer Institute. In addition, researchers found that the protective effect of breastfeeding was more pronounced for tumors of particular genetic subtypes, including the most commonly diagnosed of all breast cancers.

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