Smoking Increases Breast Cancer Risk

March 3, 2011 Updated Mar 3, 2011 at 10:02 PM EDT

By WKBW News

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March 3, 2011 Updated Mar 3, 2011 at 10:02 PM EDT

(WKBW/ABC News) We all know that smoking increases the risk of lung cancer, but a new study found that smokers also have a 16% greater risk of breast cancer compared to non-smokers.

The study found the longer a woman smoked, the greater her risk for breast cancer, and the increased risk continued for up to 20 years after a woman stopped smoking.

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