You know that friend who seems quiet in groups but becomes a total chatterbox when you’re one-on-one? Or the person who’s always the life of the party but gets weirdly focused when they’re working ...

My friend Ted is a musician. He’s kind of quiet with a great sense of humor. He enjoys getting together with friends, but not too many at a time, and his fuse is pretty short when it comes to being ...

The difference between introverts and extroverts is how they replenish their energy—introverts by spending time alone and extroverts by being around other people. The pandemic put both groups at risk ...