My response is even harsher, I go with lead has a 60% chance of causing adhd and lead was banned from being put in cars at the gas station in 1996. Then watch as most people my age realize they may have been exposed. The rest of the 40% chance is autism and more severely cerebellar hypodysplasia.

I wrote this in another thread. (not that the idea is original)

Basically, everyone experiences attention deficits. Regularly forgetting to eat because of inattention is a disorder.