When Donald Trump aced a cognitive test in January, scores of people tried to take it, too, based mostly on media reports that invited them to match wits with the president. Casual users puzzled over ...

In 1996, the year President Donald Trump took over the skyscraper at 40 Wall Street and blazed a new trail in the casino business, a young Lebanese-Canadian doctor named Ziad Nasreddine created a ...

President Donald Trump has boasted in several recent television appearances about his performance on a screening test intended to assess mild cognitive impairment or early dementia. It’s unclear if ...

President Trump's recent comments about taking an "IQ test" at Walter Reed have sparked renewed debate about his cognitive fitness. Experts clarify the test was likely the MoCA, a dementia screening ...