But why would "normal healthy individuals" use detox agents in the first place?

If I were trying this method, I would first take plenty of kidney & liver tonics (maybe the Oriental variety).

Someone posted above that it takes 16-25 years to remove mercury from the brain. What proof is there of this? What did those crazy scientists do - take some godforsaken primates, place mercury into their brains through one method or another, then start detox on the poor creatures and 16-25 years later they killed them, analyzed them, and found the brain to be clear? Please point me toward the proof, as I have not read a great deal of the experts' literature.

16-25 years? This is like the doctor telling a person with cancer that they have 6 months to live, in the sense that it induces feelings of hopelessness and futility. (It would in me, anyway.)

If I were a medical pracitioner I would never talk to anyone that way, or promulgate such "information", not directly, nor through the masses in a book. More than anything, people need to feel optimistic.