What cause head poisoning?

What cause head poisoning?
Coming in contact near or ingesting lead. Could be from front paint or handling the metallic element. Also, years ago dentists bursting teeth with an amalgam that contained front; they don't use that anymore because the lead leeched out.
um...organize
LEAD
consuming anything with head in it, from paint to a short time ago lead entering the body no thing what entrance it chooses.
I knew a guy that get shot in the cranium, cause of departure: lead poisoning. LOL
It take a lot of exposure over time to carry lead poisoning. The object babies got it from ingestion lead paint stale the walls and teething rails on cribs is it go on over several months or years. The Romans drank wine from lead goblet and had organize plumbing. Only the rich had it and eventually it artificial their judgment. A one time exposure resembling when I was a kid and they have lead BBs and we carried them within our mouths so we could spit one at a time in the gun butt. It didn't hurt anyone I knew. We adjectives graduated from college and most of my friends become teachers or successful business administrator. etc..The biggest hazard is the paranoia and the cost of removing it from buildings similar to schools. I know of a travel case wherer they removed the lead, but kept the runner in the arts school. You know that contaminated the carpet and you can never procure everything out of carpet..