At least we have an explanation why posters like @Boston.Knight @goodknightfl (among others) come up with the mind numbingly idiotic things they post.
Summary: Early-life exposure to car exhaust from leaded gas reduced the IQ of around 170 million Americans, a new study reports.
Source: Duke University
In 1923, lead was first added to gasoline to help keep car engines healthy. However, automotive health came at the great expense of our own well-being.
A new study calculates that exposure to car exhaust from leaded gas during childhood stole a collective 824 million IQ points from more than 170 million Americans alive today, about half the population of the United States.
.... The researchers calculated that at its worst, people born in the mid-to-late 1960s may have lost up to six IQ points, and children registering the highest levels of lead in their blood, eight times the current minimum level to initiate clinical concern, fared even worse, potentially losing more than seven IQ points on average.
Summary: Early-life exposure to car exhaust from leaded gas reduced the IQ of around 170 million Americans, a new study reports.
Source: Duke University
In 1923, lead was first added to gasoline to help keep car engines healthy. However, automotive health came at the great expense of our own well-being.
A new study calculates that exposure to car exhaust from leaded gas during childhood stole a collective 824 million IQ points from more than 170 million Americans alive today, about half the population of the United States.
.... The researchers calculated that at its worst, people born in the mid-to-late 1960s may have lost up to six IQ points, and children registering the highest levels of lead in their blood, eight times the current minimum level to initiate clinical concern, fared even worse, potentially losing more than seven IQ points on average.
Lead Exposure in Last Century Shrunk IQ Scores of Half of Americans - Neuroscience News
Early-life exposure to car exhaust from leaded gas reduced the IQ of around 170 million Americans, a new study reports.
neurosciencenews.com