A new study has found that obese women who undergo weight-loss surgery are 42 percent less likely to develop cancer than obese women who do not have surgery. Researchers say the study of over 4,000 people over the course of more than ten years found that the women in the surgery group were less likely to develop colon, breast, endometrial, kidney and esophageal cancers. The study did not find that surgery lowered men's risk of cancers, researchers say, and they suggest that the difference may be hormone-related.
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