Results 21 to 30 of about 712,059 (303)

Association of Fatigue With Sleep Duration and Bedtime During the Third Trimester

open access: yesFrontiers in Psychiatry, 2022
PurposeTo investigate the association between fatigue and sleep habits of pregnant women to further explore the effect of sleep duration and bedtime on fatigue during the third trimester.Materials and MethodsA total of 465 Chinese Han pregnant women in ...
Duo Ma   +12 more
doaj   +1 more source

Quantifying sleep architecture dynamics and individual differences using big data and Bayesian networks [PDF]

open access: yes, 2018
The pattern of sleep stages across a night (sleep architecture) is influenced by biological, behavioral, and clinical variables. However, traditional measures of sleep architecture such as stage proportions, fail to capture sleep dynamics.
Cellini, Nicola   +4 more
core   +2 more sources

Social-biological influences on sleep duration among adult residents of Northeastern China

open access: yesHealth and Quality of Life Outcomes, 2019
Background Cold climates traditionally have conferred long sleep duration in the residents in northeast China; however, modern lifestyle reduces sleep duration.
Yaxuan Ren   +9 more
doaj   +1 more source

Relationship between Sleep Duration and All-cause Mortality in Middle-aged and Older Adults [PDF]

open access: yesZhongguo quanke yixue, 2023
Background The scale and follow-up time of studies related to the association between sleep duration and all-cause mortality in middle-aged and older adults vary widely, and the results of studies such as correlations and recommended sleep duration ...
XU Zhe, ZHANG Jinxia, ZHANG Xiuhong, XIE Kaihong
doaj   +1 more source

Sociality Affects REM Sleep Episode Duration Under Controlled Laboratory Conditions in the Rock Hyrax, Procavia capensis. [PDF]

open access: yes, 2017
The rock hyrax, Procavia capensis, is a highly social, diurnal mammal. In the current study several physiologically measurable parameters of sleep, as well as the accompanying behavior, were recorded continuously from five rock hyraxes, for 72 h under ...
Adhil Bhagwandin   +6 more
core   +2 more sources

Models for predicting sleep latency and sleep duration [PDF]

open access: yesSleep, 2020
Abstract Study Objectives Planning effective sleep–wake schedules for civilian and military settings depends on the ability to predict the extent to which restorative sleep is likely for a specified sleep period.
Francisco G Vital-Lopez   +2 more
openaire   +2 more sources

Effect of Smartphone Usage during Night Time on Sleep Patterns of Young Adults: A Cross-sectional Observational Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research
Introduction: Excessive smartphone usage among adolescents and young adults has been consistently linked to poor sleep. Moreover, smartphone overuse has been associated with daytime tiredness, longer sleeps latency, and reduced sleep duration.
Safa Hyder   +3 more
doaj   +1 more source

Sleep duration, genetic susceptibility, and Alzheimer's disease: a longitudinal UK Biobank-based study

open access: yesBMC Geriatrics, 2022
Background Alzheimer's disease (AD) is the most frequently occurring type of dementia. Concurrently, inadequate sleep has been recognized as a public health epidemic.
Shiqi Yuan   +8 more
doaj   +1 more source

Differential Effects of Psychological and Physical Stress on the Sleep Pattern in Rats [PDF]

open access: yes, 2007
In the present study, we investigated the acute effects of 2 different kinds of stress, namely physical stress (foot shock) and psychological stress (non-foot shock) induced by the communication box method, on the sleep patterns of rats.
Araki, Hiroaki   +3 more
core   +1 more source

Solving the mystery of human sleep schedules one mutation at a time. [PDF]

open access: yes, 2013
Sleep behavior remains one of the most enigmatic areas of life. The unanswered questions range from "why do we sleep?" to "how we can improve sleep in today's society?" Identification of mutations responsible for altered circadian regulation of human ...
Fu, Ying-Hui   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy