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The nightmares usually occur during the REM stage of sleep, and the person who experiences the nightmares typically remembers them well upon waking. [2] More specifically, nightmare disorder is a type of parasomnia , a subset of sleep disorders categorized by abnormal movement or behavior or verbal actions during sleep or shortly before or after.
What causes nightmares? There are a few things that can hike the likelihood of experiencing nightmares or trigger one. "Stress and sleep deprivation are two common ones that tend to go hand-in-hand.
Nightmares can have physical causes such as sleeping in an uncomfortable position or having a fever, or psychological causes such as stress or anxiety. Eating before going to sleep, which triggers an increase in the body's metabolism and brain activity, can be a potential stimulus for nightmares.
In addition, nightmares appear ordinarily during REM sleep in contrast to night terrors, which occur in NREM sleep. [2] Finally, individuals with nightmares can wake up completely and easily and have clear and detailed memories of their dreams. [2] [30] A distinction between night terrors and epileptic seizure is required. [30]
Why might autoimmune diseases cause nightmares, hallucinations? Sloan explained how, in some cases, “patients are reluctant to report mental health symptoms for fear of the stigma.” ...
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