| Home | E-Submission | Sitemap | Contact Us |  
REVIEW ARTICLE
J Korean Sleep Res Soc. 2008;5(2):74-81.         doi: https://doi.org/10.13078/jksrs.08013
Circadian Rhythm Sleep Disorders
Sun Jung Han, and Eun Yeon Joo
1Department of Neurology, Sanbon Medical Center, Wonkwang University School of Medicine
2Department of Neurology, Sleep Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
Corresponding Author: Eun Yeon Joo ,Tel: +82-2-3410-3597, Fax: +82-2-3410-0052, Email: ejoo@skku.edu
Received: 16 December 2008;  Accepted: 23 December 2008.
Share :  
ABSTRACT
Circadian rhythm sleep disorders are characterized by an alteration of the phase relationship between the intrinsic circadian system and the extrinsic light- dark cycle that results in complaints of insomnia and excessive sleepiness. Under entrainment to the 24-hour day-night cycle, the sleep-wake pattern may assume various phase relationships to the circadian pacemaker by abnormally long or short intervals between the dim light melatonin onset (DLMO) or the core body temperature (peak time) and wake-up time. Delayed and advanced sleep phase disorders may be associated with shifted circadian rhythms (body clock). Those with ‘weak’ circadian rhythms need a very bright stimulus of light to reset their body clock every day. Treatments include sleep hygiene education, timed exposure to bright light as well as avoidance of bright light at the wrong time of the day and pharmacologic approaches, such as melatonin. This article introduces the clinical approach to the diagnosis and management of the various circadian rhythm sleep disorders, including delayed and advanced sleep phase disorders, shift worker, and jet lag.
Keywords: Circadian rhythm | Bright light therapy | Shift work | Jet lag
Editorial Office
Boramae Medical Center, Room 132, 11th Floor, Happiness Hall
20, Boramae-ro 5-gil, Dongjak-gu, Seoul 07061, Republic of Korea
Tel: +82-2-870-3864   Fax: +82-2-870-3866   E-mail: jsleepmed@gmail.com

Copyright© Korean Sleep Research Society. All rights reserved.               powerd by M2community
About |  Browse Articles |  Current Issue |  For Authors and Reviewers