Permanent Hair Dyes Tied to Adult Leukemia Risk

Researchers found that among men and women surveyed in the late 1980s, those who had used permanent hair dyes prior to 1980 were more likely to develop leukemia than adults who had never dyed their hair.

quoted from an article I just read on this website where you can read the rest of the article: http://www.activeherb.com/news/hairdye_news20040719.shtml