An individual’s genetics and their environment both shape their personality. However, opinions differ on the degree to which each of these factors influences personality, and how they contribute to ...

The exact cause of personality disorders is unclear. However, genetics, neurological differences, and environmental factors may contribute to the development of these complex mental health conditions.

Personality refers to a relatively stable set of tendencies in behaviors, cognitions, and emotional patterns, which together constitute a person’s unique character. One person may, for instance, be ...

Affectionate mothering in childhood may have a lasting impact on important personality traits, potentially influencing life outcomes such as educational achievement, economic success, and health and ...

Blame it on your parents (nature). Blame it on your friends (nurture). But, in truth, you can probably blame your personality on both. Is the development of human personalities the result of inherited ...

Birth order theory is a concept in family dynamics psychology that posits sibling position may influence personality traits.

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 ...

For years, Olga Khazan, a Virginia-based staff writer at The Atlantic, knew she had a big problem: she hated much of her own personality. "I was constantly worried about everything," she said. "Just ...

How quickly can personality traits be modified? An international research team has shown that daily use of a smartphone app can lead to desired personality changes within three months. And three ...