WASHINGTON (AP) — It’s the new chant in Washington politics: “Get a cognitive test!” Political opponents, armchair pundits and even nervous supporters are demanding that President Joe Biden undergo ...

This article was produced in partnership with the Davos Alzheimer’s Collaborative by Scientific American Custom Media, a division separate from the magazine’s board of editors. Any primary care ...

Joe Biden and Donald Trump are, respectively, the oldest and second oldest presidents in American history. As both attack each other over their mental acuity in the 2024 election, they have also ...