Yabbut, ain't led bad fer ya, Jethro? I heerd it makes a boddy week in the haid...

Quote
Lead exposure has been linked with various types of brain damage. These include

Problems with thinking (cognition);
Difficulties with organizing actions, decisions, and behaviors (executive functions);
Abnormal social behavior (including aggression); and
Difficulties in coordinating fine movements, such as picking up small objects (fine motor control) [Cecil et al. 2008].
Sufficient evidence in children shows that BLLs <5 µg/dL are associated with increased diagnosis of attention-related behavioral problems, greater incidence of problem behaviors, and decreased cognitive performance. This is indicated by

Decreased IQ,
Lower academic achievement, and
Reductions in specific cognitive measures
I s'pect that there's why ol' Trumper don't like them led lites.

You never change things by fighting the existing reality.
To change something, build a new model that makes the old model obsolete.
R. Buckminster Fuller