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ShareIn common current usage, the term nightmare refers to dreams of particular intensity, with content that the sleeper finds disturbing, related either to physiological causes, such as a high fever, or to psychological ones, such as unusual trauma or stress in the sleeper's life.
The occasional body movements seen in nightmares may have a use in awakening the sleeper, thus helping to avoid the frightening dream-situation.
For more information about the topic Nightmare, read the full article at Wikipedia.org, or see the following related articles:
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Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
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