I've obviously stuck my high heel in a muddy pile. A grande lesson learned that one must fully reference where one got the source. My faux pas, I've never read the Balch's book or the reference you are making about years left. I have read the book "Toxic Metal Syndrome" by Dr. H.Riichard Casdorph and Dr. Morton Walker who referenced the Balchs description of GABA on page 380. Which when I went back and reread the topic in question on pg178, Casdorph and Morton wrote Walter J. Crinnion N.D. advises on lead poisoning....and he indicates GABA as a brain chemical and it is he that references the Balchs. My apologies for stirring the pot, but much was learned anyway. My sincere apologies to Maryse, I did not intend to drag you in to all this. PATTY