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Half of Americans’ IQ scores Shrank Due to Lead Exposure

A new study suggests that half of Americans alive today may have had their IQ lowered due to lead exposure. The study looks at anyone born before the 1996 ban on leaded gasoline. Those born prior may have had their IQ lowered by three points on average. Exposed people may also suffer from faster aging… Continue reading Half of Americans’ IQ scores Shrank Due to Lead Exposure