Back in the 1960s, personality psychologist Hans Eysenck and others theorized that introverts produce more saliva than extroverts due to natural differences in the biology of nervous systems. The key ...

Personality is often discussed in terms of introversion and extroversion, two broad categories that help explain how people interact with the world around them. While these terms are widely used, ...

Many introverts have a preference for alone time and solitude because it's the space where they recharge their social batteries, whereas extroverts find fulfillment and are energized by social ...

For extroverts, their oxygen comes from being around people, lively conversations, and one-of-a-kind encounters. Introverts, on the other hand, can often get by without small talk and prefer to be ...