White House aides ultimately decided not to have Biden undergo a cognitive test but still feared it “could open the door to further questions,” the new book notes. Getty Images What do you think?

For the first time, a study shows an online assessment can provide a scientific measure of acetylcholine—a key brain chemical, which declines progressively with cognitive aging and even more ...

Democrat proposes cognitive tests to root out geriatrics in Congress Marie Gluesenkamp Perez flags age-related decline after Joe Biden’s disastrous presidential debate ...

Back in 2021, a test of cephalopod smarts reinforced how important it is for us humans to not underestimate animal intelligence. Cuttlefish were given a new version of the marshmallow test, and ...

Trump called Rep. Alexandria OCasio-Cortez "low IQ," challenging her and Rep. Jasmine Crockett to IQ tests while touting his own cognitive screening results.

A proposal put forward by Representative Gluesenkamp Perez would require members of congress to pass mental acuity exams in order to serve.