The president, who turns 80 later this year, took aim at Joe Biden and Barack Obama while boasting about cognitive scores.

President Donald Trump said on Friday that he didn't think former President Barack Obama could pass a cognitive test.

President Trump's remarks at The Villages questioning his supporters' intelligence have sparked backlash, highlighting risks ...

Donald Trump reignited debate over presidential mental fitness after boasting at a Florida rally and on social media that he ...

"Trump claims he's smarter than Harvard-grad Obama and Biden, demands cognitive tests for all presidential candidates. Is his ...

Dr Abbasi's remarks come amid recent speculation about the president's mental sharpness, fuelled by perceived erratic speech ...

Trump, has called for a mandatory policy requiring all presidential and vice-presidential candidates to undergo cognitive examinations before en ...

A study has identified three distinct pathways in how Alzheimer’s develops, offering insight into how Alzheimer’s cognitive ...

In a major breakthrough, researchers have developed a simple blood test that may one day help doctors predict how fast ...

Cognitive decline in Alzheimer's disease differs substantially from one person to the next and is not well predicted by ...

Cognitive decline may begin years before major cardiovascular events in older adults, according to long-term study data.