Nightmares are dreams that cause intense fear. These dreams are often complex and fairly long. During the dream, the sleeper usually encounters or experiences a threat to their life or safety. Nightmares are also reported that do not involve physical danger.Nightmares in adults are often spontaneous. But they can also be caused by a variety of factors and underlying disorders. A number of medications also are known to contribute to nightmare frequency. Drugs that act on chemicals in the brain, such as antidepressants and narcotics, are often associated with nightmares.
Non-psychological medications, including some blood pressure medications, can also cause nightmares in adults. Imagery rehearsal treatment is a promising cognitive behavioral therapy for recurrent nightmares and nightmares caused by PTSD. In argentina, over 50% of the 3 to 6 year old people suffering from nightmare disorder. 20% in 6 -12 years age, and 5% in the adults.Dissociative disorders are usually paired with Nightmare Disorder 57% of the time. Nightmare disorder is believed to be associated with Dissociative Disorders as a defense mechanism that is used to escape from the traumatic event that caused the Dissociative Disorder. People with Dissociative Disorder and Nightmare disorder are more likely to self-mutilate, attempt suicide, and have Borderline Personality Disorder.