Top Research Papers on Sleep

The risk of OSA and the ESS score significantly decreased six months after LSG in obese patients, especially those under 45-years-old, and this surgery is recommended for fast and effective weight loss and comorbidity reduction at lower ages.

Considering sleep apnoea, where sleep duration is not necessarily compromised, and many negative health outcomes, including all-cause mortality, have been reported, it is to be expected that other aspects of sleep are also important.

No important differences were found in the recovery data of the two groups, even though one group walked three times as far as the other during deprivation, supporting the idea that, in conjunction with large amounts of sleep deprivation, changes in exercise and energy depletion may have little effect on sleep measures.

Sleep and sleepiness during cumulative sleep restriction and subsequent recovery sleep Wessel van Leeuwen.

This chapter will discuss the relationship between yawning, sleep onset, awakening and sleepiness, and models concerning wake-sleep regulation will be discussed in relation to yawning.

Elderly people with TST longer than 5 hours have a better memory and older adults performed better on memory tests when total sleep time (TST) is longer than 5 hours and excessive daytime sleepiness is related to complaints of prospective, retrospective, and total memory.

Part 1 Sleepiness as a transition: the several qualities of sleepiness - psychophysiological considerations, R T Pivik circadian aspects of subjective sleepiness - a behavioral messenger?, Timothy H Monk the 24-H sleep propensity functon (SPF) - practical and theoretical implications, Peretz Lavie. Part 2 Performance and sleepiness: performing while sleepy - effects of experimentally induced sleepiness, David F Dinges and Nancy Barone Kribbs sleepiness at work - effects of irregular work hours, Torbjorn Akerstedt. Part 3 Sleep loss and sleepiness: sleep restriction, Mary A Carskadon and Thomas...

Although the groups did not differ in self-reported sleep habits, multiple concerns were reported by parents of overweight participants, including daytime sleepiness, parasomnias, and inadequate sleep.

Sleep researchers have a similar problem, it is difficult to describe what is meant by sleep disturbance either in an objective or a subjective way, and harder still to relate sleep disturbance to sleepiness shown the following day.

Night work is the most disrupting, as it is associated with insufficient sleep during the designated rest span and excessive sleepiness and sleep attacks during the span of activity, with an associated consequence being increased driving accident risk.

It was concluded that the most parsimonious explanation of these results is (he Continuity of Sleep hypothesis).

This paper reviews the extensive literature describing ethanol's effects on the sleep of healthy normals and alcoholics and the newer literature that describes its interactive effects on daytime sleepiness, physiological functions during sleep, and sleep disorders.

Swimmers and non-swimming athletes suffer significantly more with excessive daytime sleepiness than healthy controls and in elite swimmers, this is likely linked to high prevalence of OSA.

It is estimated that up to 60% of patients with Parkinson disease also have obstructive sleep, and CPAP treatment improves sleep and SleEP and SleepINESS in Parkinson patients with SLEEP APNEA.

This study examined sleep patterns and sleep disturbances in Iranian elders and correlated their sleep quality to their health status to examine the relationship of sleep problems to the greater use of health services.

Over one third of most human lives — and hence one third of human geographies — is spent asleep. It is our contention in this paper that human geographers should take sleep, sleeping and sleepiness more seriously as topics for theoretical, empirical and critical research than has hitherto been the case. This paper provides a preliminary indication of potentially fruitful directions for geographical research on sleep, reviewing salient extant work in geography and (especially) in cognate disciplines in order to develop a case for research and enquiry in four domains: sleep and consumption; slee...

There is a definite need for physicians, cardiologists and sleep specialists to work together in this field of sleep disorders and cardiovascular diseases in order to improve detection and management of these conditions.

A model of instrumental sleep fragmentation in mice was introduced and led to an increase in food intake, with no effect on body weight, alterations in brain temperature but not abdominal temperature, as well as increases in corticosterone and a reduced glucose tolerance.

It is speculated that wake and sleep spindles are generated via different mechanisms, and that wake spindle play a role in cognitive processes that occur during the daytime.

It is found that in nonalcoholics who occasionally use alcohol, both high and low doses of alcohol initially improve sleep, although high alcohol doses can result in sleep disturbances during the second half of the nocturnal sleep period.

Almost high prevalence of poor sleep quality and moderate prevalence of sleepiness among South East Iranian nurses are indicated and it is imperative that more attention is paid to this subject since it may affect the quality of care and the health of nurses negatively.

The primary conclusion is that many adolescents do not get enough sleep, and the consequences of the chronic pattern of insufficient sleep are daytime sleepiness, vulnerability to catastrophic accidents, mood and behavior problems, increased vulnerability to drugs and alcohol, and development of major disorders of the sleep/wake cycle.

The number and type of nocturnal arousals play an important role in subsequent daytime sleepiness and, depending upon the sleep complaint, different types of arousals are predictive of degree of daytimeSleepiness.

This brief paper reviews the available published literature on shiftwork and safety that allows the relative risk of "accidents" or injuries associated with specific features of shift systems to be estimated, and considers factors relating to sleep that may underlie the observed trends in risk.

Daytime sleepiness was significantly associated with the presence of untreated sleep disorders (insomnia, apnea, and RLS).

It is concluded that while reaction times slow as a result of both sleep inertia and sleep‐loss sleepiness, lapses appear to be a specific feature of sleep‐ Loss sleepiness.

FATIGUE,SLEEPINESS and SLEEP PROPENSITY in INSOMNIA – RELATION to sleep quality and quality and the role of phosphorous and sleep quality in this relation are studied.

The novel hypothesis that physical exercise and sleep have synergistic effects on memory is examined and it is shown that exercise can trigger mechanisms that can create an optimal brain state during sleep to facilitate memory processing.

Spindles were significantly reduced in children with SDB and daytime sleepiness, and the exact mechanisms of this association remain unknown and future research is needed in order to establish the exact role of sleep spindle activity on daytime symptoms in childrenwith SDB.

This study showed that high-school teachers show characteristics of partial sleep deprivation that may contribute to excessive daytime sleepiness and poor sleep quality, which may compromise health and quality of life.

The results underscore the multidimensionality of EDS in mild sleep apnea in patients presenting a borderline apnea-hypopnea index and the mechanisms of excessive daytime sleepiness remain only partially understood.

Preliminary evidence is provided for an association between child sleep problems and parental daytime sleepiness, which may, in turn, extend previous research linking young children's sleepblems and parental functioning.

Study Objectives : Research has shown variability in the correlations observed between subjective sleepiness and objective polysomnographic sleep latency. The present study evaluated whether eliciting subjective judgments of sleepiness after a 1-minute period of quiet with eyes closed would strengthen the relationship between subjective and objective measures. design : Subjective judgments of sleepiness were collected following three 1-minute conditions (eyes-closed, eyes-open fixed gaze, and visual reaction time task) using the Stanford Sleepiness Scale and a visual analogue scale, prior to a...

Monitoring the sleep and sleepiness of commercial fishermen at home and during extended periods at sea during the peak of the hoki fishing season added to the limited number of studies that objectively monitored the sleep of seafarers.

The sleep extension improved daytime sleepiness differentially in the two groups and the degree of improvement was greater in the sleepy subjects than the alert subjects and the pattern of improvement differed between the groups.

Daytime sleepiness (hypersomnia) is a common and serious complaint, although it is less common than insomnia, and many hypersomniac patients are labelled dull, lazy, workshy, or stupid, and if they need treatment are considered to be drug addicts.

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not, for teaching and research institutions in France or abroad, or from public or private research centers.

Data support recent findings which show a close relation of obesity to a history of hypertension in OSA, and extend to this group a previous observation that in regular heavy snorers, there may be a disparity between levels of physiologic and subjective sleepiness.

Individual differences in habitual sleep duration appear to be a trait-like characteristic that is determined by several factors, including genetic polymorphisms, which may help to explain the observation that many individuals in the general population are chronically sleep restricted.

‘Only when one cannot sleep does one know how long the night is’ (Anonymous) Dawn Weaver explores the underlying causes of sleep disruption in the older person and available non-pharmacological treatments.

Alertness lowered and sleepiness raised while sleepiness increased after SD, suggesting that as the time of sleep deprivation prolonged, the power of biological rhythm weakened.

It is pointed out that the value of quality sleep cannot be overestimated and seven hours sleep is associated with best long term health as measured by mortality even when controlled for other risk factors.

African-American race, short sleep duration, chronotype, and increased proinflammatory cytokine IL-6 level were associated with sleepiness in OSA.

Clinicians should be aware of factors which put their patients at high risk of daytime sleepiness, as it is a debilitating and potentially dangerous symptom with medico-legal implications.

Preliminary evidence from human studies suggesting that inflammatory cytokines such as TNF‐α not only mediate altered sleep‐wake behavior during infections, but in addition are involved in physiological sleep regulation and in hypnotic effects of established sedating drugs.

There are strong associations between nasal symptoms, especially nasal obstruction, sleep quality, and daytime sleepiness, especially in patients with hay fever caused by cedar pollen.

Last year, Sheep Pig Goat – a project by the UK-based company Fevered Sleep, was commissioned by the Wellcome Collection as part of their year-long Making Nature program which explored the relationship between perception and knowledge in human-animal relationships, along with all the attendant issues of mastery, anthropomorphism and anthropocentrism inevitably raised by the human production of knowledge about animals. Described by the company as a ‘creative research studio’, Sheep Pig Goat involved a week-long public presentation of ‘a series of improvised encounters between human performers a...

This report adds specific details to previous reports of impaired relationships in OSA, and stresses the importance of assessing this critical area.

The SCOPA-SLEEP is a reliable and valid instrument for assessing nighttime sleep and daytime sleepiness in patients with Parkinson disease and may be of value for other somatic diseases.

The spectrum of sleep and wakefulness disorders in Parkinson's disease comprises sleep fragmentation, microstructural changes, REM-sleep behaviour disorder, periodic limb movements in sleep, respiratory disturbances, autonomic disturbances and daytime sleepiness, which are discussed in detail.