Donald Trump golf resort

What Does Trump’s Golfing Reveal about His Personality?

It’s been noted that Donald Trump has been playing a lot of golf since becoming president. Can his habit be explained by his "sky-high extroversion?"
Carter and Children

How One Nightmarish Disease Was Eradicated

Guinea worm, scourge of the tropics, may be nearing its end.

Introverts at the Office—and the Oval Office

Did introversion harm Presidents Nixon and Carter's ability to perform on the job?