If I eat a crappy sandwich and get diarrhea from it, have I been poisoned? Certainly. Can I reasonably compare my experience with that of Alexander Litvinenko?

If I eat a crappy sandwich and get diarrhea from it, have I been poisoned? Certainly. Can I reasonably compare my experience with that of Alexander Litvinenko? No. Degree matters. The crappy day I have is on a totally different level from life-threatening injury. The numbers matter. Our units today are grams of lead per liter of blood. These children had an increased blood-lead content of 1.2 x 10^-7. One study I found[1] cites a IQ loss of 1.5 points for each 5 x 10^-6. Only the extreme outliers - a percentage point of children - passed that level. That's not nothing, but I would bet (without evidence) that concussions/head injuries from High School Football causes greater IQ loss on average. Lots of factors, fair and unfair, affect how our lives turn out. This one was unfair. It sucked. There are far bigger fish to fry. [1]https://today.duke.edu/2017/03/lead-exposure-childhood-linked-lower-iq-lower-status https://today.duke.edu/2017/03/lead-exposure-childhood-linke...