President Biden is facing calls to undergo cognitive testing and release the results after his disastrous debate last month, and amid a series of reports about his apparent decline in recent months.

A recent study reveals that the rhythm and flow of our natural speech may offer insights into our cognitive health.

The 38 Republicans, led by Trump’s former White House doctor, Rep. Ronny Jackson (R-Md.), sent a letter to the president on Tuesday “express[ing] concern with your current cognitive state” and asking ...

It’s been six years since Donald Trump took a cognitive exam, and it’s unsettling to see the former president continue to brag about the results. But as NBC News reported over the weekend, the fact ...