Mercury

I don't know if this is making national news, but there's been several mercury "scares" in DC schools (another reason to homeschool). When I was a youth, about 10-12 or so, I remember rolling a mercury bead around in he palm of my hand. Now of course we did not know how dangerous that is, and I wonder, could the MS be partially from that? I also, when I was 5, was attacked by a large dog, I have a deep scar in my skull, which fortunately my hair covers. Could That have something to do with it? I wonder hoq I got it, since I don't fit the "profile" for many of the other MS'rs, I was raised in he sun, in California and Spain, so I got lots of Vit D growing up, had long hot summers, short, cool winers. Never lived where it is cold unil I moved to MD. I wonder...