According to a study of the American Cancer Society, the amount of weight a woman gains after the age of 18 is a strong pointer as to whether she will get breast cancer later in life.
Obesity and body mass were identified long ago as risk factors for breast cancer. The Cancer Society estimates between one-third and one-half of all breast cancer deaths among older women have been contributed to weight.
Fat tissue makes estrogen, and estrogen can help breast cancer rise. Heather Spencer Feigelson, senior epidemiologist with the American Cancer Society mentioned that breast cancer is strongly reliant on body mass. Even modest amounts of weight gain lead to a considerably amplified risk of breast cancer.
One of the main studies of breast cancer and weight included 1,934 breast cancer cases among 62,756 women concerned in a separate long-term study. Women ages 50 to 74, who were post-menopausal, were asked their weight in 1992 when the study began and their weight when they were 18 years old. They were as well sent questionnaires at yearly intervals.
The investigators said older women who gained 20 to 30 pounds after high school graduation were 40 percent more likely to get breast cancer than women who kept the weight off. If the weight gain was more than 70 pounds, the risk was doubled. Lean post-menopausal women not taking hormone replacement therapy make very little estrogen and had the lowest cancer risk in the study.
Associate professor of surgery at Columbia University, Dr. Paul Tartter announced that the fatter you are—fat cells are able of synthesizing estrogen—the heavier you are, the higher is your estrogen levels. There’s no issue that estrogen is the ordinary denominator of most of our danger reasons for breast cancer.