Insomnia

Insomnia is when people cannot sleep for long or short periods. A person with this problem is called an insomniac. Insomnia can mean a problem with getting to sleep or a problem with staying asleep. Insomnia is a symptom and not a disease or illness.[1]

  1. Yudofsky, Stuart C.; Hales, Robert E. (2004). Essentials of Neuropsychiatry and Clinical Neurosciences. American Psychiatric Publishing. p. 322. ISBN 978-1-58562-005-0. ...insomnia is a symptom. It is neither a disease nor a specific condition.

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