At almost 80 years old, concerns are growing about his mental agility and stamina for the job after several ‘naps’ during meetings and late night posting ...

In a world of wild talk and fake news, help us stand up for the facts.

Add Yahoo as a preferred source to see more of our stories on Google. President Biden at the debate on June 27. (Kyle Mazza/Anadolu via Getty Images) (Anadolu via Getty Images) At 81, President Biden ...

Trump recently renewed his unusual insistence on his cognitive abilities, repeating claims that he has taken multiple cognitive tests and «aced each one» of them. Speaking about ongoing questions ...

Most adults never have to take an IQ test. But tests for assessing students' cognitive abilities, such as the cognitive ability test (Cat), are used in schools around the world. These tests are very ...

Watching a baby babble, play and interact with others can provide useful insight into what their cognitive ability might be like decades later, according to new University of Colorado Boulder research ...

Many online IQ tests come across as little more than digital parlor tricks. Users often end up with vague, unverified results. In other cases, the platforms tell people what they want to hear. Either ...