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Dissociative identity disorder Formerly known as multiple personality disorder, this disorder involves "switching" to other identities. You may feel as if you have two or more people talking or living inside your head.
Certain tests may rule out physical conditions that can cause symptoms such as memory loss and feeling separate from reality. Examples include head injury, certain brain diseases, a severe lack of sleep, and drug or alcohol use. Mental health exam.
Causes. The cause of factitious disorder is unknown. However, the disorder may be caused by a combination of psychological factors and stressful life experiences. Risk factors. Several factors may increase the risk of developing factitious disorder, including: Childhood trauma, such as emotional, physical or sexual abuse; A serious illness ...
Causes. It's believed that personality disorders are caused by a blend of how genetics and your environment affect you. Your genes may make it more likely that you develop a personality disorder, and what happens to you in life may set a personality disorder into motion.
Examples include post-traumatic stress disorder (PTSD) and acute stress disorder. Dissociative disorders. These are disorders in which your sense of self is disrupted, such as with dissociative identity disorder and dissociative amnesia. Somatic symptom and related disorders.
Borderline personality disorder is a mental health condition that affects the way people feel about themselves and others, making it hard to function in everyday life. It includes a pattern of unstable, intense relationships, as well as impulsiveness and an unhealthy way of seeing themselves.
Certain factors seem to increase the risk of developing antisocial personality disorder, such as: Diagnosis of childhood conduct disorder. Family history of antisocial personality disorder or other personality disorders or mental health conditions. Experiencing abuse or neglect during childhood.
Having antisocial personality disorder or borderline personality disorder may raise the risk of also having intermittent explosive disorder. So can having other disorders that include disruptive behaviors, such as attention-deficit/hyperactivity disorder (ADHD).
Causes. There's no known clear cause of oppositional defiant disorder. Causes may include a combination of genetic and environmental factors: Genetics. A child's natural personality or character — also called temperament — may contribute to developing ODD. Differences in the way nerves and the brain function also may play a role. Environment.
Depressive disorders cause loss of pleasure in most or all activities and ultimately affect your quality of life. You could have less energy, trouble sleeping, trouble concentrating, changes in appetite and lack interest.