Users share a lot of personal information with friends, family members, and colleagues via social networks. Surprisingly, some users choose to share their sleeping patterns, perhaps both for awareness as well as a sense of connection to others. Indeed, sharing basic sleep data, whether a person has gone to bed or waking up, informs others about not just one's sleeping routines but also indicate...

The purpose of this study was to characterize the recovery pattern of sleep following simulated, four successive night shifts in ten healthy men (22.9 + or - 3.2 yr). Poor sleep was defined as sleep efficiency of 80% or lower as determined actigraphically. The results showed that four (rapid, slow, pseudo, and incomplete) patterns of sleep recovery were observed over three recovery sleep period...

BACKGROUND The ankle-brachial index (ABI), ratio of leg blood pressure to arm blood pressure is used extensively as a screening test for stratification of cardiovascular risk. The problems in sleep disturbed nocturnal fall in blood pressure and may relate to development of hypertension. However, the role of sleep quality on ankle-brachial index remains unclear. METHODS AND RESULTS This study ...

STUDY OBJECTIVES The ability to recall facts is improved when learning takes place at spaced intervals, or when sleep follows shortly after learning. However, many students cram for exams and trade sleep for other activities. The aim of this study was to examine the interaction of study spacing and time in bed (TIB) for sleep on vocabulary learning in adolescents. METHODS In the Need for Slee...

BACKGROUND Sleep patterns and habits in high school students in Iran have not been well studied to date. This paper aims to re-address this balance and analyse sleep patterns and habits in Iranian children of high school age. METHODS The subjects were 1,420 high school students randomly selected by stratified cluster sampling. This was a self-report study using a questionnaire which included ...

Background: The attention deficit/ hyperactivity disorder (ADHD) is one of the most compromising mental disorders of childhood and adolescence. Subsequently, different studies in recent years were conducted on the relationship between sleep disturbances and ADHD in children. About 30% of children and 60% to 80% of adults with ADHD develop sleep disorders, which may result in cognitive and behav...

BACKGROUND Evidence suggests that inadequate or disturbed sleep is associated with increased cardiovascular risk in adults. There are limited data on sleep quality and associated cardiovascular risk in children. METHODS We obtained data on adolescents from the 2009/10 cycle of the Healthy Heart Schools' Program, a population-based cross-sectional study in the Niagara region of Ontario. Partic...

Background Subjective cognitive decline (SCD) is associated with future decline, elevated amyloid levels, and non-specific variables, including mood. Participants often endorse higher concerns than their study partners (SPs), raising the possibility that participant complaints reflect multiple factors, mood, lifestyle status. To determine predictive value of modifiable we examined relation betw...