Donald Trump admitted he took cognitive tests three times amid mounting health concerns. The president addressed the worries ...

Reaction time reflects brain processing speed; simple tests like the ruler drop can reveal attention, coordination, and early cognitive changes.

After Donald Trump bragged about passing his third straight cognitive exam on social media last week, Jimmy Kimmel is getting in on the action. The late-night host, 58, revealed on Monday’s episode of ...

Add Yahoo as a preferred source to see more of our stories on Google. The cable news media has disgracefully blacked out President Donald Trump’s stunning rant about his latest cognitive test — which ...