An insecure and unstable sense of identity is fundamental to borderline personality disorder (BPD). Even as researchers in the field urge that clinicians move away from categorizing people with ...

In psychiatry, there’s no more controversial diagnosis than dissociative identity disorder (DID), the disorder formerly known as multiple personality disorder (MPD). First appearing in the third ...

Here's what BPD is, what causes it, how it is treated and why there is hope for those who have it.

We learn the story of “Ella,” a patient with 12 different personalities, or “parts,” and of her therapist, who helped her form a peaceful community—many selves in one body and mind. She'll tell us ...

Can a person naturally have multiple distinct accents? Dissociative identity disorder (DID) is a condition in which multiple different identity states coexist in the same individual and have their own ...

Genetics is just one of several factors thought to influence personality disorder development. Life experiences, family dynamics, coping mechanisms, and social learning may all be contributing factors ...