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How Much Does Lifestyle Affect Breast Cancer Risk?

Study Suggests Weight, Drinking Habits, and Physical Activity Account for Small Portion of Overall Risk

Perspective on Cancer Risk continued...

"These kinds of models are more important at the population level than at the personal level," says Mary B. Daly, MD, PhD, chair of the department of clinical genetics at Fox Chase Cancer Center in Philadelphia.

"I've been taking care of women with breast cancer for 25 years, most of them don't have any of these risk factors," she says. "There's obviously a lot more going on. Those risk factors that we know about only tell part of the picture."

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