Is staying up late a sign of a sharper mind? The idea intrigues, amuses, and often sparks debate. A large-scale scientific ...

For as long as intelligence has been studied, we’ve been told that our raw IQ is mostly a genetic hand-me-down. Sure, we've learned how to sharpen the knives we were handed and increase our “effective ...

A version of this essay first appeared in Jess Steier’s newsletter, “Unbiased Science.” Fluoride is having a rough day in the court of public opinion. The National Toxicology Program (NTP), part of ...

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 ...

The mineral fluoride found in drinking water has no connection to lowered children’s IQ levels, according to a recent study. The research, published in Science Advances, opposed Health and Human ...

ATLANTA — A recent study of cognitive analyses says the average intelligence quotient, or IQ, in the United States is about 98. According to the study by NCHStats, based on data from MedicineNet, when ...

A rigorous nine-year research review looking at the relationship between fluoride and intelligence in children concludes that as fluoride levels rise, IQ drops. Every 1 part per million increase in ...

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 ...