Neuroscientist explains how Trump and Biden's cognitive impairments are different

As the 2024 presidential election nears, two senior citizens are gearing up for mental marathons that will push them to their cognitive limits.

While both candidates have already earned nicknames for showing signs of mental decline, we must confront the uncomfortable question of whether either “dementia Donny” or “sleepy Joe” are fit for the job of commander-in-chief.

After all, with former President Donald Trump having just turned 78, and President Joe Biden at 81, they are the two oldest candidates to ever run for president...