6. Dissociative identity disorderThose with this disorder have trouble recalling events. | iStock.com/KatarzynaBialasiewicz
Dissociative identity disorder, also known as multiple personality disorder, is frequently associated with violence, danger, and scary plot twists in horror films and TV shows. But DID is actually very rare — only about 2% of the population have this type of disorder, according to the National Alliance on Mental Illness. The symptoms of DID are also quite contrary to anything close to violence or danger. “One of the biggest indicators of DID is the inability to access large parts of childhood memories and another is lost time or memory loss about recent events,” Mogali said.
There is treatment for DID, which includes medical and psychiatric evaluation as well as psychotherapy. Mogali recommends an average of five to seven years with a specially trained therapist. “This can integrate the different expressions of personality into one unified personality and is accomplished by treating the underlying trauma that caused the formation of the disorder,” Mogali explained.