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 ...

With summer in full swing, your extroverted best friend is psyched to socialize the night away at your mutual friend’s backyard barbecue. You, on the other hand, are staring at the clock. (And I don’t ...

The classic labels of introvert and extrovert have long been used to explain why some people thrive off of social interaction and why some people prefer solitude. While neither one is “better” than ...

While we all know individuals who are wildly outgoing, plenty of fun to be around and occasionally even obnoxious, chances are we relate less to these extroverts and more to introverts or people ...

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 ...