I had a hair analysis done, and like I said it showed 8x times normal nickel in my hair but my copper/zinc seemed to be fine. I'm sure hair levels are'nt a great idea of tissue levels, but how does that book describe a copper problem in hair test? Does it through other minerals off? Like my calcium/mag were kinda low, my vanadium was low etc. Funny because cal/mag is high with other metals problems like mercury.