Everyone has had a nightmare one time or another maybe when they were a child or even as an adult. But what happens when the nightmares are constant? The fact is that nightmares are more frequent in children than in adults. According to a research done by Tucker Shaw, approximately 50% of the adult population have no nightmares. The rest only remember one or two per year. 5 to 10% remember nightmares once a month or more, but only a small percentage of people have nightmares that are disturbing enough to alter their lives.
According to Freud, nightmares relate to startling and painful experiences of the past, to events of infancy and even birth itself. These experiences left behind psychic problems that the helpless child could not solve at the time. In fact, any painful situation may leave a residue of grief, guilt and anxiety. In this view, built represents the energy used for continually repeating unpleasant thoughts, both in waking life and in dreams. We continue to dream about "unfinished" situations until we work through the guilt or anxiety. Freud called this a repetition compulsion. This pattern is illustrated vividly in Shakespeare's Macbeth. When Lady Macbeth encourages Macbeth to murder the kind, at first she seems untroubled by her part in the murder. But her guilt shows itself in a nightmare, which finally made her lose her mind.
There is also physical illness that might produce nightmare. Although it is unclear whether illness itself or the stress that accompanies it is more important.
Also neurological disorders sometimes have been associated with nightmares. [Normally, epilepsy and postencephalitic Parkinsonism also mental illness and stressful events.] In certain individuals, nightmares occur at the onset of psychosis, especially schizophrenic episodes. Depression can also be associated with an increase of nightmares.
Stressful periods in adults lives, such as times of examinations, jobs, exchanges, moves, or the loss of significant persons, may produce or increase nightmares. The one generalization that seems to hold true for nightmare sufferers is that their nightmares almost always involve the feeling of helplessness. Most often helplessness dating from childhood, the most frequent situation in their nightmares involve being chased, attacked, thrown off a cliff, or generally it is the dreamer who is the danger and utterly powerless, not someone else. A decrease or sometimes a cessation of adult nightmares usually occurs as the dreamer feels more confident, more mature, and thus less close to the helpless feeling of childhood.
Some myths about nightmares have been that demons or evil spirits produce nightmares. There isn't any solid evidence that eating something disagreeable will cause them. Recent evidence also contradicts another widely held view that a lack of oxygen gives rise to nightmares. Obstructive sleep apnea is a disorder in which air does not get through the throat to the lungs of the sleeper because of some obstruction at the back of the throat. This may happen a hundred or more times in one night. The chest and abdomen of the sleeper heave but no air gets through, and after ten or twenty seconds there is a brief awakening, allowing normal breathing to resume. Sleep-apnea sufferers very rarely report nightmares, indicating that a lack of oxygen is not causally related to nightmares.
Now that we know the myths about nightmares and the facts, lets see if we can try to categorize the people that have them often. A study done showed that nightmare sufferers do have something in having jobs or lifestyles related to the arts...