this post was submitted on 01 Mar 2025
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I've read theories that part of the... let's call it "general cognitive decline" among certain populations in the US is due to widespread chronic lead poisoning. I don't know if any studies have ever been done but it kind of makes sense on the surface. If paint and fuel contained lead, it would have been nearly impossible to avoid exposure to it.
This is the study cited by an article on the subject: https://www.pnas.org/doi/10.1073/pnas.2118631119
This was the article I found about it: https://today.duke.edu/2022/03/lead-exposure-last-century-shrunk-iq-scores-half-americans
A few years back we heard a lot about lead in / around Flint, MI. But that isn't the only, nor perhaps the worst place. smh. Point of use filtration is key. A second key point is to work to remove the heavy metals one already has accumulated.