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More than 100 different disorders of sleeping and waking have been identified. They can be grouped in four main categories:Problems with falling and staying asleepProblems with staying awakeProblems with sticking to a regular sleep scheduleSleep-...
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Substances, living situations, and physical or mental disorders that can cause sleep disorders include:.Mental disorders, especially depression or one of the anxiety disorders, can cause sleep disturbances. Psychiatric disorders are the most commo...
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