American IQ test scores have dropped during a recent 13-year period, a remarkable finding that runs counter to the well-established trend of increasing IQ scores throughout much of the 20th century.

For years, critics have used fear of “IQ loss” to fuel campaigns against community water fluoridation. Public officials, ...

The future may not be as bright. IQ scores have decreased in the US for the first time in decades, new research from scientists at Northwestern University and the University of Oregon suggests. The ...

Infections of the stomach, urinary tract or skin may affect a person’s cognitive abilities and IQ, according to a recent Danish study. In a study the largest of its kind to date, researchers from two ...

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 ...

The findings come after Utah and Florida’s ban on fluoride in public drinking water went into effect during the summer.

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 new study’s findings suggest Covid-19 could have longer-term effects on cognition and memory that lead to measurable differences in cognitive performance, The Washington Post reported. The study was ...

University of Iowa researchers found that autistic individuals with a high IQ face an increased risk for suicidal thoughts, according to a recent study. Researchers focused on twice-exceptional youth, ...