Clinical cornerstone
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Insomnia is a significant public health issue. Good sleep is essential for emotional and physical wellbeing. The importance of adequate sleep is evidenced by the fact that insomnia can adversely affect physical and mental health. ⋯ The symptoms of insomnia also include daytime consequences such as tiredness, lack of energy, difficulty concentrating, or irritability. Insomnia can be a symptom of an underlying medical, psychiatric, sleep, or circadian disorder or a disorder in itself (i.e., primary insomnia). This paper will present information about the prevalence, morbidity, causes, and diagnoses of insomnia, and the behavioral and pharmacologic management of this disorder.