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Delayed sleep phase disorder: clinical perspective with a focus on light therapy

Authors Figueiro M

Received 19 November 2015

Accepted for publication 11 January 2016

Published 6 April 2016 Volume 2016:8 Pages 91—106

DOI https://doi.org/10.2147/NSS.S85849

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Prof. Dr. Roumen Kirov

Peer reviewer comments 3

Editor who approved publication: Professor Steven Shea

Mariana G Figueiro

Lighting Research Center, Rensselaer Polytechnic Institute, Troy, NY, USA

Abstract: Delayed sleep phase disorder (DSPD) is common among adolescents and further increases their susceptibility to chronic sleep restriction and associated detrimental outcomes, including increased risk of depression, drug and alcohol use, behavioral problems, and poor scholastic performance. DSPD is characterized by sleep onset that occurs significantly later than desired bedtimes and societal norms. Individuals with DSPD exhibit long sleep latencies when attempting to sleep at conventional bedtimes. Circadian sleep disorders such as DSPD can occur when there is misalignment between sleep timing and societal norms. This review discusses studies using light therapy to advance the timing of sleep in adolescents and college students, in particular on those suffering from DSPD. A discussion on how to increase effectiveness of light therapy in the field will also be provided.

Keywords: circadian, melatonin, light, sleep, sleep phase disorder, adolescents

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