Advanced sleep phase disorder

Advanced Sleep Phase Disorder
Advanced Sleep Phase Disorder
Specialty	Chronobiology
Symptoms	Earlier than desired onset and offset of sleep
Complications	Sleep deprivation
Risk factors	Increased incidence with age
Diagnostic method	Polysomnography, Horne-Ostberg morningness-eveningness questionnaire
Treatment	Bright light therapy, chronotherapy

Advanced Sleep Phase Disorder (ASPD), also known as the advanced sleep-phase type (ASPT) of circadian rhythm sleep disorder, is a condition that is characterized by a recurrent pattern of early evening (e.g. 7-9 PM) sleepiness and very early morning awakening (e.g. 2-4 AM). This sleep phase advancement can interfere with daily social and work schedules, and results in shortened sleep duration and excessive daytime sleepiness.^[1] The timing of sleep and melatonin levels are regulated by the body's central circadian clock, which is located in the suprachiasmatic nucleus in the hypothalamus.^[2]

^ Cite error: The named reference :25 was invoked but never defined (see the help page).
^ Reid KJ, Chang AM, Dubocovich ML, Turek FW, Takahashi JS, Zee PC (July 2001). "Familial advanced sleep phase syndrome". Archives of Neurology. 58 (7): 1089–94. doi:10.1001/archneur.58.7.1089. PMID 11448298.

[:25-1] Cite error: The named reference :25 was invoked but never defined (see the help page).

[:1-2] Reid KJ, Chang AM, Dubocovich ML, Turek FW, Takahashi JS, Zee PC (July 2001). "Familial advanced sleep phase syndrome". Archives of Neurology. 58 (7): 1089–94. doi:10.1001/archneur.58.7.1089. PMID 11448298.

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