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Nightmare. A nightmare, also known as a bad dream, [1] is an unpleasant dream that can cause a strong emotional response from the mind, typically fear but also despair, anxiety, disgust or sadness. The dream may contain situations of discomfort, psychological or physical terror, or panic. After a nightmare, a person will often awaken in a state ...
Jun 5, 2021 · Nightmare disorder may cause: Excessive daytime sleepiness, which can lead to difficulties at school or work, or problems with everyday tasks, such as driving and concentrating. Problems with mood, such as depression or anxiety from dreams that continue to bother you. Resistance to going to bed or to sleep for fear you'll have another bad dream.
