In one study, introverts even reported feeling truer to themselves when they were behaving like extroverts. That’s because, much as we might prize authenticity, we have other desires, too.

What makes an introvert vs. an extrovert? As psychoanalyst Carl Jung, who introduced the concepts back in 1923 described, extroverts prefer to engage with the outer world of objects, sensory ...

Jessica Pan, a shy introvert, set herself the challenge of living as an extrovert for a year. She forced herself to speak to strangers, take improvisation classes and perform stand-up comedy.