Obesity raises overall risk of breast cancer: study

Women who gain weight as adults face a higher lifetime risk of all types of breast cancer, researchers reported on Monday.

The study adds to a large body of evidence showing that weight and breast cancer can be closely linked.

A study of more than 44,000 women found that the more weight a woman gained, the greater her risk for all types, stages, and grades of breast cancer.
Compared to women who gained 20 pounds (10 kg) or less during adulthood, women who gained more than 60 pounds (27 kg) were almost twice as likely to have ductal type breast tumors and more than 1.5 times more likely to have lobular type cancers...more

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