Studies link childhood lead exposure, violent crime
June 6, 2015 9:31 am
After growing up poor in a predominantly African-American neighborhood of Cincinnati, the young adults had reached their early 20s. One by one, they passed through an MRI machine that displayed their brains in sharp, cross-sectioned images.
For those who had been exposed to lead as toddlers, even in small amounts, the scans revealed changes that were subtle, permanent and devastating.
The toxic metal had robbed them of gray matter in the parts of the brain that enable people to pay attention, regulate emotions and control impulses. Lead also had scrambled the production of white matter that transmits signals between different parts of the brain, largely by mimicking calcium, an element that plays a critical role in brain development.
Scars left by lead have had significant consequences for the study participants and their communities. As children, they struggled in school more than those who had not been exposed. As teens, they committed crimes more frequently, University of Cincinnati researchers reported
Last month, a Tribune investigation found that lead hazards are festering in the same parts of Chicago that have given the city a national reputation for violence and academic failure. In impoverished, crime-ridden neighborhoods like Austin, Englewood and Lawndale, more than 80 percent of the children tested in 1995 had dangerous lead levels.
http://www.chicagotribune.com/news/ct-lead-poisoning-science-met-20150605-story.html
* Take a look at the DATE of this article, it was before the current lead crisis being exposed in Flint and other cities.