What's the big deal with lead, anyway?

I mean, come on, when I was a kid, lead was in everything! What's the big deal?

Er....well, OK, maybe there is more to this.

According the WebMD site, lead "preferentially enters the growing bones and brain and other organs, where it can cause significant disruptions and damage, such as learning problems and ADHD at relatively low levels; seizures, brain damage and even death at high levels."

Oh...that sounds bad, right?

Check out the full article here, it also has an interesting history of evolution of thinking on lead