https://www.cdc.gov/nceh/lead/prevention/health-effects.htm https://www.cdc.gov/nceh/lead/prevention/health-effects.htm Take your pick. If exposed during child

https://www.cdc.gov/nceh/lead/prevention/health-effects.htm https://www.cdc.gov/nceh/lead/prevention/health-effects.htm Take your pick. If exposed during childhood it results in essentially mental retardation and impulse issues. The thought is this led to more issues with crime. This article discusses the study- https://www.brookings.edu/blog/up-front/2017/06/01/new-evide https://www.brookings.edu/blog/up-front/2017/06/01/new-evide...