Neurological disorder of excessive time spent sleeping or excessive sleepiness
Not to be confused with Narcolepsy.
Medical condition
Hypersomnia
Other names
Hypersomnolence
Specialty
Psychiatry, neurology, sleep medicine
Hypersomnia is a neurological disorder of excessive time spent sleeping or excessive sleepiness. It can have many possible causes (such as seasonal affective disorder) and can cause distress and problems with functioning.[1] In the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), hypersomnolence, of which there are several subtypes, appears under sleep-wake disorders.[2]
Hypersomnia is a pathological state characterized by a lack of alertness during the waking episodes of the day.[3] It is not to be confused with fatigue, which is a normal physiological state.[4] Daytime sleepiness appears most commonly during situations where little interaction is needed.[5]
Since hypersomnia impairs patients' attention levels (wakefulness), quality of life may be impacted as well.[6] This is especially true for people whose jobs request high levels of attention, such as in the healthcare field.[6]
^"Sleep Disorders". American Psychiatric Association. 2015. Retrieved 12 January 2017.
^"Recent Updates to Proposed Revisions for DSM-5: Sleep-Wake Disorders". DSM-5 Development. American Psychiatric Association.
^American Academy of Sleep Medicine. The international classification of sleep disorders: diagnostic & coding manual (2nd ed). Westchester, IL: American Academy of Sleep Medicine, 2005.
^Grossman, A., Barenboim, E., Azaria, B., Sherer, Y., & Goldstein, L. (2004). The maintenance of wakefulness test as a predictor of alertness in aircrew members with idiopathic hypersomnia. Aviation, space, and environmental medicine, 75(3), 281–283.
^Wise, M. S., Arand, D. L., Auger, R. R., Brooks, S. N., & Watson, N. F. (2007). Treatment of narcolepsy and other hypersomnias of central origin. Sleep, 30(12), 1712–1727.
^ abMorgenthaler, T. I., Kapur, V. K., Brown, T. M., Swick, T. J., Alessi, C., Aurora, R. N., … Zak, R. (2007). Practice Parameters for the Treatment of Narcolepsy and other Hypersomnias of Central Origin. Sleep, 30(12), 1705‑1711. https://doi.org/10.1093/sleep/30.12.1705
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strong desire for sleep, or sleeping for unusually long periods (compare hypersomnia). It has distinct meanings and causes. It can refer to the usual state...
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syndrome Other specified feeding or eating disorder Nonorganic sleep Hypersomnia Insomnia Parasomnia Night terror Nightmare REM sleep behavior disorder...
daytime sleepiness while improving vigilance in primary hypersomnias, such as idiopathic hypersomnia. The drug has also been used in hepatic encephalopathy...
October 2022. Diabetes.co.uk Critchley M (December 1962). "Periodic hypersomnia and megaphagia in adolescent males". Brain. 85 (4): 627–56. doi:10.1093/brain/85...
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syndrome Other specified feeding or eating disorder Nonorganic sleep Hypersomnia Insomnia Parasomnia Night terror Nightmare REM sleep behavior disorder...
syndrome Other specified feeding or eating disorder Nonorganic sleep Hypersomnia Insomnia Parasomnia Night terror Nightmare REM sleep behavior disorder...
in the live-action film The Night Beyond the Tricornered Window, and "Hypersomnia" is also featured in the film. The group released Gusare (ぐされ) on February...
syndrome Other specified feeding or eating disorder Nonorganic sleep Hypersomnia Insomnia Parasomnia Night terror Nightmare REM sleep behavior disorder...
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syndrome Other specified feeding or eating disorder Nonorganic sleep Hypersomnia Insomnia Parasomnia Night terror Nightmare REM sleep behavior disorder...
syndrome Other specified feeding or eating disorder Nonorganic sleep Hypersomnia Insomnia Parasomnia Night terror Nightmare REM sleep behavior disorder...
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