I haven’t heard of this being looked into specifically, but IMO there could certainly be a plausible connection.
Adults exposed to lead as children have less brain volume in the prefrontal cortex and several other areas. It’s definitely not impossible that this could kickstart maladaptive cognitive patterns such as narcissism.
I found the following, from a WHO page about lead poisoning [1], particularly interesting:
“IHME also estimated that in 2019, lead exposure accounted for 62.5% of the global burden of developmental intellectual disability whose cause is not obvious.”
Adults exposed to lead as children have less brain volume in the prefrontal cortex and several other areas. It’s definitely not impossible that this could kickstart maladaptive cognitive patterns such as narcissism.
I found the following, from a WHO page about lead poisoning [1], particularly interesting:
“IHME also estimated that in 2019, lead exposure accounted for 62.5% of the global burden of developmental intellectual disability whose cause is not obvious.”
[1] https://www.who.int/en/news-room/fact-sheets/detail/lead-poi...