You would get much validation on this issue by reading the book "detoxify or die" by Dr. Sherry Rogers, M.D. She does some mainstream medicine bashing in this book about how they're all about drugs and treating symptoms and don't look for root causes of things such as heavy metals, toxins, etc. It is an excellent book in which she highly advocates sauna use (especially the infra red sauna) for detoxification. She also has a section in this book on the mercury amalgam problem and recommends removing the fillings and getting the mercury out with DMSA. She has a detox cocktail which consists of ALA, Vitamin C and glutathione to get rid of toxins. It's a great book.