About the thyroid, Andy cutlers book mentions that mercuy attacks the thyroid in a big way, i read Hal Huggins book, recently,uninformed consent, theres a big article on how mercury affects the thyroid gland, it is probably the main thing affected,it causes, depression, numbness, anxiety, insomnia, etc, if people treated their thyroids, symptoms would be less, chelation would be easier. Vit B12 deficiency is extremley common,i take sublingual lozengers daily..