Thanks. Never came to my mind to search this one but I should have. Interesting that many reports show a correlation.
The problem with many medical/health/diet studies is that they contradict each other within 6 months of publication to a degree that leaves the consumer totally confused. My rule of thumb: Human bodies have evolved during millions of years without ingesting chemicals and are not built to deal with chemicals. A little, occasional, chemicals is OK, but daily use is bad. A few exceptions in my mind like the extremely limited use of antibiotics.