Past Lead Exposure Shrank IQ Scores for Millions of Americans
[html]“I was very surprised by the fact that just over 50 percent of the population was exposed to elevated levels of lead.”[/html]
Source: Past Lead Exposure Shrank IQ Scores for Millions of Americans (http://ht**://www.discovermagazine.c**/health/past-lead-exposure-shrank-iq-scores-for-millions-of-americans)