Could Be One Reason For Early Menopause In the largest study ever done on the effects of perfluorocarbons (PFCs) on womens hormone systems, West Virginia University researchers found in blood tests that higher levels of these man-made chemicals are associated with early menopausal symptoms in females aged 42 to 64. Premature menopause has been linked to a variety of health problems, including cardiovascular disease. Researchers collected data from 25,957 women, measuring serum concentration levels of PFCs and the female hormone estradiol, and reported a definite association between... (Read More ...)