A study of young children in Canada suggests those whose mothers drank fluoridated tap water while pregnant had slightly lower IQ scores than children whose mothers lived in non-fluoridated cities. A ...

Environmental factors such as health and education played a role in both the rise in IQ scores during the 20th century, as well as a long-term decline dating back to the mid-'70s, a study from ...

New and controversial research published Monday suggests fluoride consumption by pregnant women may lower the IQ of their children. The JAMA Pediatrics study by Canadian researchers found that ...

About 209 million Americans receive fluoridated water in their taps, according to the Centers for Disease Control and Prevention. (Jim Cole / Associated Press) A new report linking fluoridated ...

IQ scores are on a decline, reversing a trend that saw scores rising at a steady rate during the 20th century, according to a new study. Researchers from the Ragnar Frisch Centre for Economic Research ...

Striking new research published in the journal Proceedings of the National Academy of Sciences estimates lead exposure, primarily from car exhaust, has negatively affected the IQ of about half the ...

Exposure to leaded gasoline lowered the IQ of about half the population of the United States, a new study estimates. The peer-reviewed study, published Monday in the journal Proceedings of the ...

Over 170 million U.S.-born people who were adults in 2015 were exposed to harmful levels of lead as children, a new study estimates. Researchers used blood-lead level, census and leaded gasoline ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Water fluoridation has been hailed by the US ...

A new report linking fluoridated drinking water to lower IQ scores in children is sure to ratchet up the debate over a practice that’s considered one of the greatest public health achievements of the ...