Denise Hummell, M.D. writes at Zenit:
Scientific studies from around the world show that younger women, specifically those between the ages of 25 and 39, are increasingly being diagnosed with aggressive breast cancer—which has often spread further in the body by the time of diagnosis. A study on cancer rates in Geneva, Switzerland, published in 2007 found that breast cancer in this age group of women increased at the alarming rate of 46.7% per year from 2002 to 2004[i].
An analysis of breast cancer epidemiology in the United States noted a similarly accelerating diagnosis of metastatic breast cancer beginning in 1976 and extending to the last year for which data was available, 2009. The American findings, published in the Journal of the American Medical Association (JAMA) in February 2013, noted that this trend was not seen in older women diagnosed with breast cancer. The authors did not speculate on any specific causes of this increase, instead attributing it to a vague multifactor etiology. They did make it clear that the results measured a true increase in the incidence of breast cancer and were not simply the outcome of better diagnostic techniques[ii].
British researchers affiliated with the organization Cancer Research UK reported that between1993 and 2010 there was an 11% growth in the incidence of breast cancer in women under the age of 50. Currently, one in five breast cancer cases in the UK are occurring in this younger female demographic. Unlike their American counterparts, however, Cancer Research UK did postulate possible causes for this exponential growth in aggressive breast cancer affecting younger women: use of hormonal contraceptives, women waiting until later in life to have children, and having fewer children or even no children overall.[iii]
Read the rest here.