Chronotype and self-reported sleep, alertness, and mental health in U.S. sailors

Military Medical Research

Gena L. Glickman¹  Elizabeth M. Harrison²  Alexandra P. Easterling²  Suzanne L. Hurtado³  Emily A. Schmied⁴ 

[1] Center for Circadian Biology, University of California San Diego, San Diego, USA;Departments of Psychiatry and Neuroscience, Uniformed Services University of the Health Sciences, Bethesda, USA;Center for Circadian Biology, University of California San Diego, San Diego, USA;Leidos, Inc., San Diego, USA;Health and Behavioral Sciences Department, Naval Health Research Center, San Diego, USA;Health and Behavioral Sciences Department, Naval Health Research Center, San Diego, USA;School of Public Health, San Diego State University, San Diego, USA;

关键词: Circadian;    Chronotype;    Sleep;    Military;    Readiness;    Depression;    Anxiety;    Post-traumatic stress disorder (PTSD);   

DOI  :  10.1186/s40779-021-00335-2

来源: Springer

【 摘 要 】

Service members are at risk for sleep and psychological conditions affecting their readiness. Chronotype (“morningness” or “eveningness”) is strongly associated with sleep, health and performance. The objective of this study was to examine associations between validated measures of chronotype and sleep quality, daytime functioning, alertness, and symptoms of depression, anxiety, and post-traumatic stress disorder (PTSD) in US service members (n = 298). Although predominantly young males (who skew toward eveningness in civilian populations), these Sailors skewed toward morningness (35.6% morning, 51.3% intermediate). Eveningness was associated with symptoms of depression and post-traumatic stress disorder (PTSD) (P < 0.01), less time in bed (P < 0.05), more sleep disruption (P < 0.01), and poorer daytime functioning and alertness (P < 0.05). Evening types were less likely to consider sleep important for performance (P < 0.05). To maximize service member readiness, schedules should be aligned with endogenous rhythms, whenever possible, and evening chronotypes may benefit from targeted interventions. Chronotype should be examined alongside health and readiness in service members.

【 授权许可】

CC BY