Women preferred morningness significantly more than men. Differences in scores between both sexes became greater in order of the phase points of 'rising time,' 'peak of activities,' and 'falling-to-sleep time,' suggesting that oscillator(s) of men are more easily free-running than those of women. Women majoring in natural sciences or agriculture preferred morningness significantly more than wom...

Objective: This research was conducted to identify the relationship between chronotypes of nurses working in shifts and quality their lives.
 Methods: The sample that designed as a descriptive study comprised 267 shifts. data were collected with survey form, Morningness–Eveningness Questionnaire, Short-Form Health Survey (SF-36).
 Results: As per breakdown by chronotype, 68.9% interme...

BACKGROUND Impairment of sleep and circadian rhythm is a typical feature of bipolar disorder (BD). We carried out an exploratory cross-sectional case-control study to extend the knowledge of sleep characteristics in offspring at risk for BD. METHODS We investigated 42 offspring of bipolar parents (OB) (mean age 12.5 ± 3.2) and 42 sex and age matched comparison offspring of healthy parents. We...

OBJECTIVE Morningness/eveningness (M/E) is a stable characteristic of individuals. Circadian rhythms are altered in episodes of mood disorder. Mood disorder patients were more evening-type than normal population. In this study, we compared the characteristics of M/E among the 257 patients with bipolar I disorder (BPD1), bipolar II disorder (BPD2) and major depressive disorder, recurrent (MDDR)....

Objectives This is the first general population study to evaluate whether evening chronotypes (E) have poorer work ability (WA) and higher probability for early disability pensions (DPs) than morning types (M) in middle age. Methods Among non-retired individuals (n=5831; 2672 men, 3159 women) of Northern Finland Birth Cohort 1966, chronotype was determined at age 46 years with shortened Morning...

Introduction Several studies investigated the role of inflammation in etiopathogenesis psychiatric disorders, by also evaluating how CRP may exert a pathoplastic and/or psychopatological mood disorders. Objectives The aim our cross-sectional study is high-sensitivity C-reactive-protein (hsCRP) levels cohort unipolar and bipolar depressive inpatients, relation with psychopathological, temperamen...