Anti-weight women to be breast cancer

American Cancer Society released a study that women in the age of 18 after the rate of weight gain later whether its has a lot of breast cancer. Fat good at creating estrogen, excessive estrogen can help breast cancer growth. Weight gain of various types of cancer has become the second largest incentives. The study showed that, after graduating from high school weight gain 10 to 15 kilograms of women, the risk of breast cancer increased 40 percent, such as the 35 kg weight gain, the risk rose to 80 percent. The study involved more than 60,000 women. The study also suggests that postmenopausal women, those low-weight women not taking hormones, estrogen in the small, the risk of breast cancer is lowest.