Natural light exposure, sleep and depression among day workers and shiftworkers at arctic and equatorial latitudes.
PLoS One
; 10(4): e0122078, 2015.
Article
em En
| MEDLINE
| ID: mdl-25874859
ABSTRACT
OBJECTIVES:
This study aimed to investigate the relationship between individual natural light exposure, sleep need, and depression at two latitudes, one extreme with a few hours of light per day during winter, and the other with equal hours of light and darkness throughout the year.METHODS:
This cross-sectional study included a sample of Brazilian workers (Equatorial, n = 488 workers) and a Swedish sample (Arctic, n = 1,273).RESULTS:
The reported mean total natural light exposure per 4-week cycle differed significantly between the Equatorial and Arctic regions. However, shiftworkers from both sites reported similar hours of natural light exposure. Short light exposure was a predictor for insufficient sleep.CONCLUSION:
Reduced exposure to natural light appears to increase the perception of obtaining insufficient sleep. Arctic workers were more prone to develop depression than Equatorial workers.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Sono
/
Tolerância ao Trabalho Programado
/
Depressão
/
Luz
Tipo de estudo:
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
País como assunto:
America do sul
/
Brasil
/
Europa
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article