The [Environmental Protection Agency] has set a 10-year deadline for most utilities to replace lead service lines, but omitted requirements for schools to replace the water fountains or plumbing that have lead components.
Archived at https://ghostarchive.org/archive/F5qXx
It decreases inhibition as well. IIRC, that’s one reason it’s hypothesised lead exposure contributed to the crime waves, and why blood lead levels are correlated to incarceration.