High Levels of Two Hormones -- testosterone and insulin -- Raise Women's Risk of Breast Cancer
American Institute for Cancer Research InfoZine, December 29, 2005
All of us have male and female hormones in our bodies, and the risk of breast cancer seems to be affected by both. For some time, studies have pointed to estrogen and progesterone as risk factors. But now research from part of an extremely large European study confirms that high levels of testosterone, usually considered a male hormone, raise a woman's risk of premenopausal, and possibly postmenopausal, breast cancer. Research also consistently links high levels of the hormone insulin and insulin-like growth factors with increased rates of breast cancer, at least after menopause. Women with high insulin levels have lower rates of breast cancer survival, too. --Click the title of this post to read the full article from its source--