Did you know that lead poisoning causes cognitive, motor, and behavioral changes? In addition, it has been shown, that it also plays a role in the pathophysiology of ADHD. Lead exposure is estimated to account for 290,000 excess cases of ADHD in US children.
Read the full study here: https://pubmed.ncbi.nlm.nih.gov/17185283/
The most common sources of lead are through our drinking water and typical “men’s jobs” i.e. mechanics and the like. If we don’t test for it, we can’t treat it.