On that note, I also have friends and the husband is an oral surgeon. When I realized I had mercury he poo-pooed it. He was just a dentist at the time. He's a sweet, naive guy that didn't want to believe it. But then he gave his own wife some amalgam fillings. She told me later she FELT the difference herself and personally had been his assistant before and felt sick working in the dentist office. The dentists are to be pitied. It is detrimental to them all the more when they handle it nearly daily.....and I know of one who pretty much went off the deep end. There was only one mercury free dentist in Fairbanks, at least, when i learned about all that.