Reference Article

from Wikipedia, the free encyclopedia

Nightmare

In 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.

Note: This article excerpts material from the Wikipedia article "Nightmare", which is released under the GNU Free Documentation License.

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