New research published in the Journal of Sleep Research suggests that maladaptive personality traits are linked to poor sleep health. The findings indicate that individuals who exhibit higher levels ...

There are three basic types of narcissistic personality traits and each of these traits has a different effect on the individual. Ackerman et al. (2011) developed a scale to measure traits of ...

When most people think about personality disorders, they use category names such as “borderline,” “narcissist,” or “psychopath.” These category names are part of the conventional diagnostic naming ...