I am 47. I always thought my health was pretty good but after being poisoned dreadfully by a couple of hack dentists this past winter and undergoing chelation I now realize that certain little things that have bothered me since childhood were most likely caused by mercury fillings and related heavy metals in my environment... like a sharp pain in my chest that would come and go which I was stold by my RN mom not to worry about when I was about 10... and the wierd ridges on my fingernails that I was told not to worry about by my RN mom at the age of 19... other little stuff, that have since gone away with the chelation.