Background: Regarding this, the present study was conducted to identify the effective factors on sleep satisfaction and chronobiology among rural adults. Materials and Methods: This cross-sectional study was conducted on 385 adults how living in 31 rural areas of Fariman city, Iran, selected through stratified sampling technique. The sample size was calculated using a conservative approach with...

As many other progressive fields of scientific inquiry, the study of circadian rhythms has experienced enormous growth in the recent past. From fungi and plants to birds and mammals, as well as from molecules and cells to organisms and populations, research on circadian rhythms has advanced at full speed into the 21st century. Circadian rhythm research is currently published in prestigious gene...

The emergence pattern of Schistosoma curassoni cercariae from Bulinus umbilicatus, whose adult worms parasitize bovine, caprine, and ovine ungulates in Niger, is of a circadian type with a mean emission time at 0855 hr +/- 1 hr 6 min, characteristic of the schistosome species parasitizing domestic or wild cattle. The comparison of this cercarial emergence pattern with those of the other 3 sympa...

Syndromes of respiratory disorders of sleep as well as nonpulmonary disorders of sleep are common and amenable to treatment (1). Obstructive sleep apnea hypopnea syndrome is the most common diagnosis found in the laboratory assessment of patients with sleep-related complaints (2). Anecdotal reports suggest that between 10 and 40% of a community outpatient practice of pulmonary medicine involves...

To the Editor: As a gauge of variability, dipping, based on day-night ratios of blood pressure, is much discussed,1 with 2194 hits in a search of the literature on the Internet. But, as compared with dipping, a classification based on chronobiological end points (such as the circadian amplitude and phase) interpreted in the light of reference values specified by gender and age offers superior d...

PURPOSE Mammals urinate less frequently during the sleep period than the awake period. This is modulated by a triad of factors, including decreased arousal in the brain, a decreased urine production rate in the kidneys and increased functional bladder capacity during sleep. The circadian clock is genetic transcription-translation feedback machinery. It exists in most organs and cells, termed th...