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Sleep Disorders

(Disorders of Sleep, somnipathy)
is a kind of:
These mental disorders affect sleep. They include Parasomnias and Dyssomnias. When there is evidence that prominent sleep disturbance is directly due to exposure to medications, toxins, alcohol or other drugs, diagnosis of this Substance Related Disorder may be appropriate.
Credit

Definition reprinted with permission from Culebras, Antonio, Clinical Handbook of Sleep Disorders, Butterworth-Heinemann

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