نتایج جستجو برای: sleep duration
تعداد نتایج: 309856 فیلتر نتایج به سال:
Previous studies have demonstrated that afternoon naps can have a negative effect on subsequent nighttime sleep in children. These studies have mainly been based on sleep questionnaires completed by parents. To investigate the effect of napping on such aspects of sleep quality, we performed a study in which child activity and sleep levels were recorded using actigraphy. The parents were asked t...
Sleep duration is implicated in the etiologies of chronic diseases and premature mortality. However, the genetic basis for sleep duration is poorly defined. We sought to identify novel genetic components influencing sleep duration in a multi-ethnic sample. Meta-analyses were conducted of genetic associations with self-reported, habitual sleep duration from seven Candidate Gene Association Resou...
CONTEXT Short sleep duration is associated with adverse health outcomes, but the mechanisms involved are unknown. It has been postulated that short sleep duration may elevate cortisol levels, but studies have had conflicting results. It is unclear whether these differing findings may be due to methodological issues, such as assessment of sleep duration. Specifically, objective versus subjective...
A negative association between sleep duration and BMI has been observed in children. However, knowledge about the association between sleep duration and diet is limited. The objective was to examine the association between sleep duration and intake of foods and nutrients in children. In the present crosssectional study, dietary intake and sleep duration were recorded by the parents for seven co...
A negative association between sleep duration and BMI has been observed in children. However, knowledge about the association between sleep duration and diet is limited. The objective was to examine the association between sleep duration and intake of foods and nutrients in children. In the present cross-sectional study, dietary intake and sleep duration were recorded by the parents for seven c...
during adolescence, there is a tendency to sleep late and sleep less because of altered psychosocial and life-style changes. recent studies have demonstrated the link between sleeping less and gaining weight in children, adolescents, and adults. we studied the effect of late sleeping and sleeping less on body mass index (bmi) in medical college freshmen. all participants were adolescents (104 m...
Sleep and sleep disorders are related to cardiovascular disease, and microvascular function is an early cardiovascular disease marker. Therefore, the relationship of sleep (measured in sleep quality and duration) with microvascular function was examined in healthy adults. Sleep quality was assessed with the validated Sleep Wake Experience List (SWEL) questionnaire. Duration of sleep was self-re...
1503 Hormonal Response to Short Sleep Differs by Sex—St-Onge et al INTRODUCTION Epidemiologic studies report an association between selfreported sleep duration and obesity.1 In fact, obesity and self-reported sleep duration show inverse trends with obesity prevalence increasing over the past decades and sleep duration decreasing.2 Moreover, there is increasing evidence from clinical studies sho...
BACKGROUND Epidemiological and experimental evidence suggests that inadequate sleep can cause both obesity and impaired glucose tolerance. Short sleep duration in childhood appears to have a greater impact on the risk for adult obesity than adult sleep duration. The long-term effects of childhood sleep on glucose metabolism have not been investigated. The authors assessed the associations betwe...
BACKGROUND Sleep is important in terms of good general health and appropriate sleep duration has been linked to quality-of-life. Dysphonia may impair communication and social relationships, and is thus also closely related to quality-of-life. No large-scale, cross-sectional epidemiological study of a sample representative of the population of an entire country has yet assessed the possible exis...
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