Results 1 to 10 of about 100,006 (157)

The Teensleep study: the effectiveness of a school-based sleep education programme at improving early adolescent sleep

open access: yesSleep Medicine: X, 2020
Objective: To evaluate the impact of a school-based sleep education programme on adolescent sleep and sleep knowledge. Methods: This is the first outcome report on ‘Teensleep’: a novel, teacher-led programme, comprising ten lessons that can be delivered ...
Gaby Illingworth   +4 more
doaj   +1 more source

Removal of melatonin receptor type 1 signalling induces dyslipidaemia and hormonal changes in mice subjected to environmental circadian disruption

open access: yesEndocrinology, Diabetes & Metabolism, 2021
Background Melatonin is a hormone secreted by the pineal gland in a circadian rhythmic manner with peak synthesis at night. Melatonin signalling was suggested to play a critical role in metabolism during the circadian disruption.
Cynthia Tchio   +3 more
doaj   +1 more source

Impact of work schedules of senior resident physicians on patient and resident physician safety: nationwide, prospective cohort study

open access: yesBMJ Medicine, 2023
Objective To determine whether long weekly work hours and shifts of extended duration (≥24 hours) are associated with adverse patient and physician safety outcomes in more senior resident physicians (postgraduate year 2 and above; PGY2+).Design ...
Christopher P Landrigan   +5 more
doaj   +1 more source

Waking experience modulates sleep need in mice

open access: yesBMC Biology, 2021
Background Homeostatic regulation of sleep is reflected in the maintenance of a daily balance between sleep and wakefulness. Although numerous internal and external factors can influence sleep, it is unclear whether and to what extent the process that ...
Linus Milinski   +8 more
doaj   +1 more source

Chronotype and self-reported sleep, alertness, and mental health in U.S. sailors

open access: yesMilitary Medical Research, 2021
Service members are at risk for sleep and psychological conditions affecting their readiness. Chronotype (“morningness” or “eveningness”) is strongly associated with sleep, health and performance.
Elizabeth M. Harrison   +4 more
doaj   +1 more source

The Timing of the Melatonin Onset and Phase Angle to Sleep Onset in Older Adults after Uncontrolled vs. Controlled Lighting Conditions

open access: yesClocks & Sleep, 2023
The main aim of this study was to explore how melatonin onset timing and phase angle to bedtime in healthy older adults are impacted by prior light exposure.
Arturo Arrona-Palacios   +3 more
doaj   +1 more source

The retinal ipRGC-preoptic circuit mediates the acute effect of light on sleep

open access: yesNature Communications, 2021
The preoptic area (POA) is critical for sleep regulation but its role in acute, non-circadian, light effects on sleep are unclear. The authors show that intrinsically photosensitive retinal ganglion cells provide substantial input into the POA and ...
Ze Zhang   +3 more
doaj   +1 more source

Accuracy of Three Commercial Wearable Devices for Sleep Tracking in Healthy Adults

open access: yesSensors
Sleep tracking by consumers is becoming increasingly prevalent; yet, few studies have evaluated the accuracy of such devices. We sought to evaluate the accuracy of three devices (Oura Ring Gen3, Fitbit Sense 2, and Apple Watch Series 8) compared to the ...
Rebecca Robbins   +10 more
doaj   +1 more source

Psychological Screening for Exceptional Environments: Laboratory Circadian Rhythm and Sleep Research

open access: yesClocks & Sleep, 2020
Selecting participants who constitute a representative sample while protecting them from potential adverse outcomes is a concern for clinical researchers.
Stephen A. Amira   +4 more
doaj   +1 more source

Association Between Sleep Disturbances With Neurodevelopmental Problems and Decreased Health‐Related Quality of Life in Children With Fontan Circulation

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2021
Background Children with Fontan circulation are known to be at increased risk for neurodevelopmental problems and decreased health‐related quality of life (HRQOL), but many factors that may contribute to this risk are unknown.
Kirstin Knobbe   +10 more
doaj   +1 more source

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