Sleep disorders
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Dysfunctional sleep is an important cause of morbidity and is associated with numerous long-term health problems. Sleep-related symptoms can loosely be divided into insomnias, disorders causing excessive daytime sleepiness, and parasomnias, with some conditions having elements of all three categories. The need to sleep is imperative, reflecting the fact that sleepiness, similar to hunger and thirst, is a true drive state. Although its function remains largely elusive, disordered sleep can be associated with profound adverse effects on cognition, mental health, and physical well-being. Moreover, sleep-related symptoms are very common, with 25% of people reporting problems that significantly and regularly impact on daily activities.
2011 ◽
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2021 ◽
Vol 15
(1)
◽
2021 ◽
pp. 135581962199749