An underdevelopment in the prefrontal cortex is associated with deficits in impulse control and moderation of social behavior. Blacks tend to have less development in this region of the brain.
source?
Prior to 2016, it would have been an easy matter for me to do a quick Google search and give you an avalanche of authoritative sources for this. Today, not so much. Searches for such information today lead you only to snowflake-approved sources. Basically, in 2017, they broke Google to make sure that the Trump victory phenomenon cannot repeat itself.
