The role of sleep in bipolar disorder
Citation
Gold, Alexandra K., and Louisa G Sylvia. 2016. “The role of sleep in bipolar disorder.” Nature and Science of Sleep 8 (1): 207-214. doi:10.2147/NSS.S85754. http://dx.doi.org/10.2147/NSS.S85754.Abstract
Bipolar disorder is a serious mental illness characterized by alternating periods of elevated and depressed mood. Sleep disturbances in bipolar disorder are present during all stages of the condition and exert a negative impact on overall course, quality of life, and treatment outcomes. We examine the partnership between circadian system (process C) functioning and sleep–wake homeostasis (process S) on optimal sleep functioning and explore the role of disruptions in both systems on sleep disturbances in bipolar disorder. A convergence of evidence suggests that sleep problems in bipolar disorder result from dysregulation across both process C and process S systems. Biomarkers of depressive episodes include heightened fragmentation of rapid eye movement (REM) sleep, reduced REM latency, increased REM density, and a greater percentage of awakenings, while biomarkers of manic episodes include reduced REM latency, greater percentage of stage I sleep, increased REM density, discontinuous sleep patterns, shortened total sleep time, and a greater time awake in bed. These findings highlight the importance of targeting novel treatments for sleep disturbance in bipolar disorder.Other Sources
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4935164/pdf/Terms of Use
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http://nrs.harvard.edu/urn-3:HUL.InstRepos:27822109
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