Footage from Arizona shows Donald Trump defending his mental acuity, citing past cognitive evaluations to dismiss media ...

This isn’t a real cognitive test, but it should give you an understanding of how simple screenings work. Donald Trump, who is just three years younger than Biden, has yet to offer details on ...

Trump gets a lot of things wrong when he talks about cognitive tests. He recently bragged to journalists that he “aced” one, and said the doctors at Walter Reed told him no president had taken a ...

Doubts about the mental fitness of President Biden and Donald Trump to hold the White House in their 80s have highlighted tests that could reveal whether an older adult is experiencing cognitive ...

Questions from the world’s shortest IQ test even stumped students at Yale and Harvard! Maybe you have a dark sense of humor, or perhaps you failed your driver’s test—both are signs of intelligence, ...

Learn how Alzheimer's disease is diagnosed through history, testing, imaging, and emerging blood biomarkers to support early ...