Study discloses breast cancer, weight-gain link
The amount of weight a woman gains after age 18 is a strong indicator of whether she will develop breast cancer, according to American Cancer Society research. Some local health officials, however, question the findings. Women who gain between 20 and 30 pounds after age 18 are 40 percent more likely to get breast cancer after menopause than women who keep the weight off, said lead researcher of the study Heather Spencer Feigelson. Women who gained more than 70 pounds were twice as likely to get cancer than women who gained less than 20 pounds, the research showed. "It is a well-descripted finding in the scientific world, but it's not very well-known among women that weight gain is a high risk factor," Feigelson said. Feigelson said the best explanation is that estrogen stimulates breast cancer cells to grow and multiply and, throughout her life, a woman's estrogen is stored in fat tissue.