The first study to follow lead-exposed children from before birth into adulthood has shown that even relatively low levels of lead permanently damage the brain and are linked to higher numbers of arrests, particularly for violent crime.Remember the good old days of lead poisoning?
Previous studies linking lead to such problems have used indirect measures of both lead and criminality, and critics have argued that socioeconomic and other factors may be responsible for the observed effects.
But by measuring blood levels of lead before birth and during the first seven years of life, then correlating the levels with arrest records and brain size, Cincinnati researchers have produced the strongest evidence yet that lead plays a major role in crime.
The researchers also found that lead exposure is a continuing problem despite the efforts of the federal government and cities to minimize exposure. - Los Angeles Times