That said, although women tend to worry most about a family hx of BC, that is only a factor in 10-15% of breast cancers, while it is estimated that 1/3 of breast cancer cases might be prevented with adequate attention to lifestyle choices. Once again, these have not been proven
to CAUSE or
PREVENT breast
cancer, but a considerable amount of evidence has accumulated indicating that they are associated with increased or decreased RISK for BC and/or recurrences..