نتایج جستجو برای: chronotype
تعداد نتایج: 631 فیلتر نتایج به سال:
Effects of temperature on circadian clock and chronotype: an experimental study on a passerine bird.
Daily schedules of many organisms, including birds, are thought to affect fitness. Timing in birds is based on circadian clocks that have a heritable period length, but fitness consequences for individuals in natural environments depend on the scheduling of entrained clocks. This chronotype, i.e., timing of an individual relative to a zeitgeber, results from interactions between the endogenous ...
Relations between common nightmares and chronobiological factors remain poorly understood. The possibility that nightmare frequency and distress are associated with chronotype ("morningness-eveningness") was investigated in a sample of respondents to an Internet questionnaire. Over a 4(1/2)-year period, a total of 3978 subjects (mean age = 26.5 +/- 11.6 yrs; age range = 10-69; 2933 female, 1045...
BACKGROUND Daily cycles of sleep/wake, hormones, and physiological processes are often misaligned with behavioral patterns during shift work, leading to an increased risk of developing cardiovascular/metabolic/gastrointestinal disorders, some types of cancer, and mental disorders including depression and anxiety. It is unclear how sleep timing, chronotype, and circadian clock gene variation con...
Background: Sleep disorders during pregnancy pose a real threat to the mother and fetus due violation of physiological course gestation process, release melatonin (central peripheral). The aim study:Comparative evaluation sleep chronotype indicators in healthy pregnant non-pregnant women. Materials methods: There was conducted voluntary survey 210 relatively girls (medical students), average ag...
Existing evidence suggests an association between mood, time-of-day and morningness-eveningness (M-E). Since few studies have been carried out among adolescents, in this study daily mood fluctuations were analyzed in the naturalistic school context during 2 d in order to test how chronotype and time-of-day are related to mood during the school schedule period and check if sleep length is involv...
PURPOSE Technology-related behaviors (e.g., computer use) before bedtime (BT) have been associated with poorer and shorter sleep in adolescents; however, less is known about other behaviors in relation to sleep. This study characterized a range of behaviors in the hour before bed (i.e., pre-BT behaviors [PBBs]) and examined their relationship with sleep parameters during school and vacation per...
Circadian rhythms govern all biological functions. Circadian misalignment has a major impact on health. Late chronotype is a risk factor for circadian misalignment which in turn can affect the control of seizures in epilepsy patients. We compared a group of 87 confirmed epilepsy patients regardless of subtypes with age- and sex-matched healthy controls. We compared generalized epilepsy patients...
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