President Trump has claimed he “aced” all three cognitive tests administered to him during his first and second ...

President Donald Trump rambled about his ability to correctly identify animals as he touted his mental acuity on Friday, ...

Add Yahoo as a preferred source to see more of our stories on Google. Nikki Haley, former ambassador to the United Nations, speaks at the Susan B. Anthony Pro-Life America headquarters in Arlington, ...

Cognitive tests are gaining attention for their role in the early detection of Alzheimer's and other forms of dementia. Dementia is a growing concern as it kills more older Americans than breast and ...

Political opponents, armchair pundits and even nervous supporters are demanding that President Joe Biden undergo such testing after his dismal debate performance – even though his physician says he ...