Neuroticism—the tendency to be anxious, fearful, and easily frustrated—is one of the Big Five personality traits and is closely related to self-esteem, mental health, and overall well-being. Take this ...

Personality, an emerging new theory suggests, may be less like eye color and more like a fitness level—you can work on it, if you're willing to put in the time. That's what Laurie Clarke of the BBC ...