I wonder how much this is causing the worldwide swing toward authoritarianism. Lead exposure can cause lower conscientiousness, lower agreeableness, and higher neuroticism.[1]
Especially considering the age of people who actually vote and who the politicians in power are (at least in the U.S.)
Is lead exposure going up or down? I assume it's going down, because lead gasoline was banned, lead paint was banned, and the lead that was in the environment due to those 2 source is slowly being cleaned up.
I at least assume lead exposure now is lower than when leaded gas was primarily used. In the US it started to be phased out in 1973 and finished in 1996.
Especially considering the age of people who actually vote and who the politicians in power are (at least in the U.S.)
[1] https://pmc.ncbi.nlm.nih.gov/articles/PMC8307752/