title: Understanding insomnia.
abstract: Anxiety and depression are common causes of insomnia, but they are not the only causes. Neurological disorders such as restless legs syndrome and periodic limb movement disorder are also common. A conceptual model of sleep and wakefulness helps to explain different kinds of insomnia.
authors: Sleep Disorders Unit, Epworth Hospital, Richmond, Victoria.
authors: M
authors: M
authors: Johns
mesh_terms: D000431:Ethanol / Q000494:pharmacology; D006801:Humans; D006993:Hypnotics and Sedatives / Q000494:pharmacology; D008954:Models, Biological; D007319:Sleep Initiation and Maintenance Disorders / Q000209:etiology / Q000503:physiopathology / Q000628:therapy; D012894:Sleep Stages; D014851:Wakefulness
chemical_list: D006993:Hypnotics and Sedatives; D000431:Ethanol