TY  -  
T1  - Winter is coming : nightmares and sleep problems during seasonal affective disorder 
SN  -  /  
UR  - http://hdl.handle.net/10138/172273 
T3  -  
A1  - Sandman, Nils; Merikanto, Ilona; Maattanen, Hanna; Valli, Katja; Kronholm, Erkki; Laatikainen, Tiina; Partonen, Timo; Paunio, Tiina 
A2  -  
PB  -  
Y1  - 2016 
LA  - eng 
AB  - Sleep problems, especially nightmares and insomnia, often accompany depression. This study investigated how nightmares, symptoms of insomnia, chronotype and sleep duration associate with seasonal affective disorder, a special form of depression. Additionally, it was noted how latitude, a proxy for photoperiod, and characteristics of the place of residence affect the prevalence of seasonal affective disorder and sleep problems. To study these questions, data from FINRISK 2012 study were used. FIN... 
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KW  - epidemiology; urban-rural differences; PATTERN ASSESSMENT QUESTIONNAIRE; RISK-FACTORS; MOOD; POPULATION; BEHAVIOR; PREVALENCE; LIGHT; EPIDEMIOLOGY; EVENINGNESS; CHRONOTYPE; 3112 Neurosciences; 3124 Neurology and psychiatry 
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ER  -