I Have heard that Electromagnetic fields such as from Mobile Phones and Computer Monitors Increase significantly the ammount of vapour released from mercury fillings. I have only got about six fillings but for the last ten years or so I have been sat at computer screens for hours on end most days.
It's been over that period that I have had symptoms of mercury poisoning. My mum has got about twelve fillings and seems to be perfectly healthy at the mo. The difference is that she spends most of the day doing house work and is not sat looking at the computer screen. But when she does use the computer for long periods she starts getting headaches.

could this be one of the reason's why some people suffer and other's don't.

Here's a link.

www.home.earthlink.net