Results 11 to 20 of about 703,277 (252)

Chronotype-Dependent Sleep Loss Is Associated with a Lower Amplitude in Circadian Rhythm and a Higher Fragmentation of REM Sleep in Young Healthy Adults

open access: yesBrain Sciences, 2023
In modern society, the time and duration of sleep on workdays are primarily determined by external factors, e.g., the alarm clock. This can lead to a misalignment of the intrinsically determined sleep timing, which is dependent on the individual ...
Charlotte von Gall   +3 more
doaj   +2 more sources

Investigating the relationship between sleep and postpartum depression: a longitudinal study examining the relationships between subjective and objective sleep during the perinatal period and postpartum depression. [PDF]

open access: yes, 2013
Research has suggested that a bi-directional relationship exists between sleep disruption and depression. Not only is poor sleep a commonly reported symptom in those with depression, some aspects of sleep have also been shown to predict the onset of ...
Kita, Lauren Elizabeth
core   +9 more sources

Differential associations of hypoxia, sleep fragmentation, and depressive symptoms with cognitive dysfunction in obstructive sleep apnea [PDF]

open access: yes, 2021
Obstructive sleep apnea (OSA) is characterized by recurrent episodes of partial or complete cessation of breathing during sleep and increased effort to breathe.
Kennedy, Gerard   +4 more
core   +1 more source

Sleep–wake patterns are altered with age, Prdm13 signaling in the DMH, and diet restriction in mice

open access: yesLife Science Alliance, 2023
This study found that age-associated sleep changes are ameliorated by DR in the presence of Prdm13 signaling in the DMH, suggesting Prdm13+ DMH neurons will be of great interest to explore a potential intervention on age-associated sleep changes.
Shogo Tsuji   +16 more
doaj   +1 more source

Effects of sleep fragmentation and partial sleep restriction on heart rate variability during night

open access: yesScientific Reports, 2023
We developed a cross-over study design with two interventions in randomized order to compare the effects of sleep fragmentation and partial sleep restriction on cardiac autonomic tone.
Julia Schlagintweit   +7 more
doaj   +1 more source

The Natural History of Insomnia: Acute Insomnia and First-onset Depression [PDF]

open access: yes, 2013
Study Objectives: While many studies have examined the association between insomnia and depression, no studies have evaluated these associations 1) within a narrow time frame, 2) with specific reference to acute & chronic insomnia, and 3) using ...
Michael L. Perlis   +18 more
core   +1 more source

Sleep fragmentation affects glymphatic system through the different expression of AQP4 in wild type and 5xFAD mouse models

open access: yesActa Neuropathologica Communications, 2023
Alzheimer’s disease (AD) is characterized by genetic and multifactorial risk factors. Many studies correlate AD to sleep disorders. In this study, we performed and validated a mouse model of AD and sleep fragmentation, which properly mimics a real ...
Valeria Vasciaveo   +8 more
doaj   +1 more source

Sleep and cognition [PDF]

open access: yes, 2014
Sleep is an ancestral and primitive behaviour, an important part of life thought to be essential for restoration of body and mind. As adults, we spend approximately a third of our lives asleep and as we progress through life there are certain shifts in ...
Wright, Hayley   +11 more
core   +1 more source

Sleep deprivation, sleep fragmentation, and social jet lag increase temperature preference in Drosophila

open access: yesFrontiers in Neuroscience, 2023
Despite the fact that sleep deprivation substantially affects the way animals regulate their body temperature, the specific mechanisms behind this phenomenon are not well understood.
S. Tanner Roach   +11 more
doaj   +1 more source

The Impact of Sleep Fragmentation on Alcohol Induced Behavior

open access: yesThe Owl, 2021
Sleep disorders and alcohol use disorders are frequently comorbid and widely prevalent. Comorbid individuals experience an array of physiological and psychological health effects.  The impact of alcohol on sleep deprivation has been studied, typically in
Courtney Camarillo
doaj  

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