People who live longer, happier lives tend to have some commonalities: strong social connections, healthier diets, a positive attitude. They also have high levels of a specific personality trait: ...

Most people believe that personality is generally very stable—and in many ways, they’re right. If you are an extravert, for example, it’s not quite possible for you to turn into an introvert overnight ...

Some people believe personality is fixed, but more recent research suggests that personality may develop over time and that people’s personality traits can change. Personality types group people into ...