Results 51 to 60 of about 2,995,382 (335)

Sleep duration and patterns in Chinese older adults: A comprehensive meta-analysis [PDF]

open access: yes, 2017
This meta-analysis examined the mean sleep duration and patterns in Chinese older adult population. A literature search was systematically conducted covering major English (PubMed, Embase and PsycINFO) and Chinese (Chinese National Knowledge ...
Chiu, Helen F.K   +9 more
core   +2 more sources

Associations of sleep quality and sleep duration with frailty and pre-frailty in an elderly population Rugao longevity and ageing study

open access: yesBMC Geriatrics, 2020
BackgroundPrevious studies suggest that poor sleep quality or abnormal sleep duration may be associated with frailty. Here we test the associations of sleep disturbances with both frailty and pre-frailty in an elderly population.MethodsParticipants ...
Xuehui Sun   +6 more
semanticscholar   +1 more source

Bright light therapy as part of a multicomponent management program improves sleep and functional outcomes in delirious older hospitalized adults. [PDF]

open access: yes, 2013
ObjectiveDelirium is associated with poor outcomes following acute hospitalization. A specialized delirium management unit, the Geriatric Monitoring Unit (GMU), was established.
Ancoli-Israel, Sonia   +4 more
core   +1 more source

Association of sleep behavior with depression: a cross-sectional study in northwestern China

open access: yesFrontiers in Psychiatry, 2023
BackgroundThis study aimed to examine the association between sleep duration, sleep problems, and depression in Northwest China.MethodDepression was diagnosed at the hospital and self-reported by the participants in the baseline survey.
Jingchun Liu   +44 more
doaj   +1 more source

Inverted U-shaped relationship between sleep duration and phenotypic age in US adults: a population-based study

open access: yesScientific Reports
Sleep is a modifiable behavior that can be targeted in interventions aimed at promoting healthy aging. This study aims to (i) identify the sleep duration trend in US adults; (ii) investigate the relationship between sleep duration and phenotypic age; and
Yanwei You   +7 more
semanticscholar   +1 more source

REM sleep deprivation during 5 hours leads to an immediate REM sleep rebound and to suppression of non-REM sleep intensity [PDF]

open access: yes, 1990
Nine healthy male subjects were deprived of REM sleep during the first 5 h after sleep onset. Afterwards recovery sleep was undisturbed. During the deprivation period the non-REM EEG power spectrum was reduced when compared to baseline for the ...
Achermann   +22 more
core   +4 more sources

Sleep Duration and Myocardial Infarction

open access: yesJournal of the American College of Cardiology, 2019
Observational studies suggest associations between extremes of sleep duration and myocardial infarction (MI), but the causal contribution of sleep to MI and its potential to mitigate genetic predisposition to coronary disease is unclear.This study sought to investigate associations between sleep duration and incident MI, accounting for joint effects ...
Daghlas, Iyas   +6 more
openaire   +4 more sources

Shorter sleep duration and better sleep quality are associated with greater tissue density in the brain [PDF]

open access: yes, 2018
Poor sleep quality is associated with unfavorable psychological measurements, whereas sleep duration has complex relationships with such measurements. The aim of this study was to identify the associations between microstructural properties of the brain ...
AA Razek   +38 more
core   +4 more sources

Independent and combined associations of sleep duration and sleep quality with common physical and mental disorders: Results from a multi-ethnic population-based study

open access: yesPLoS ONE, 2020
Sleep duration and sleep quality are often linked to increased risk of mortality and morbidity. However, national representative data on both sleep duration and sleep quality and their relationship with chronic health problems are rarely available from ...
Lee Seng Esmond Seow   +8 more
semanticscholar   +1 more source

Sleep duration and mortality – Does weekend sleep matter? [PDF]

open access: yesJournal of Sleep Research, 2018
SummaryPrevious studies have found a U‐shaped relationship between mortality and (weekday) sleep duration. We here address the association of both weekday and weekend sleep duration with overall mortality. A cohort of 43,880 subjects was followed for 13 years through record‐linkages.
Akerstedt T.   +6 more
openaire   +3 more sources

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