Results 41 to 50 of about 28,011 (288)

The relationship between physical activity, sleep, and coping skills among adolescent vocational students, and the effects of a physical education-based coping training [PDF]

open access: yes, 2015
Background and aims Adolescence is defined as a vulnerable period characterized by several physiological and psychosocial changes that affect health and behavior.
Lang, Christin
core   +1 more source

The correlation of vitamin D level with sleep quality and mood in patients with chronic insomnia

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2023
Objective To investigate relationship between vitamin D level and season, sleep quality and anxiety and depression in patients with chronic insomnia.
HAO Yong⁃ci   +5 more
doaj   +1 more source

Seasonal changes in sleep duration and sleep problems: A prospective study in Japanese community residents.

open access: yesPLoS ONE, 2019
BackgroundA scientific understanding of the effects of seasonal changes on sleep duration and sleep problems such as insomnia and hypersomnia has yet to be elucidated; however, such an understanding could aid the establishment of an optimal sleep hygiene
Masahiro Suzuki   +6 more
doaj   +1 more source

Delayed Sleep in Winter Related to Natural Daylight Exposure among Arctic Day Workers

open access: yes, 2018
Natural daylight exposures in arctic regions vary substantially across seasons. Negative consequences have been observed in self-reports of sleep and daytime functions during the winter but have rarely been studied in detail.
Moreno, Claudia R.   +17 more
core   +1 more source

Daily associations between sleep and pain in patients with chronic musculoskeletal pain [PDF]

open access: yes, 2021
Patients with chronic pain commonly report sleep problems, and the evidence for a relationship between sleep disturbance and pain seems robust. The day‐to‐day associations between these constructs are less well studied, particularly with objective sleep ...
Abeler, Karin   +7 more
core   +1 more source

Eat or Sleep: Availability of Winter Prey Explains Mid-Winter and Spring Activity in an Arctic Calanus Population [PDF]

open access: yesFrontiers in Marine Science, 2020
Copepods of the genus Calanus have adapted to high levels of seasonality in prey availability by entering a period of hibernation during winter known as diapause, but repeated observations of active Calanus spp. have been made in January in high latitude fjords which suggests plasticity in over-wintering strategies.
Laura Hobbs   +8 more
openaire   +6 more sources

Effects of a pragmatic lifestyle intervention for reducing body mass in obese adults with obstructive sleep apnoea: a randomised controlled trial [PDF]

open access: yes, 2014
This study investigated the effects of a pragmatic lifestyle intervention in obese adults with continuous positive airway pressure-treated obstructive sleep apnoea hypopnoea syndrome (OSAHS).
Copeland, Robert   +13 more
core   +1 more source

Seasonal influences on sleep and executive function in the migratory White-crowned Sparrow (Zonotrichia leucophrys gambelii)

open access: yesBMC Neuroscience, 2010
Background We have previously shown that the White-crowned Sparrow (WCS) decreases sleep by 60% during a period of migratory restlessness relative to a non-migratory period when housed in a 12 h light: 12 h dark cycle.
Hannan Ciaran T   +4 more
doaj   +1 more source

Verification of the effect of sleeping environment and humidification on middle-aged people in whole-house air-conditioning ventilation system housing [PDF]

open access: yesE3S Web of Conferences, 2019
This study focused on the thermal comfort of air circulation-type whole-house air-conditioning ventilation systems. We studied the influence of 24-h continuous whole-house air-conditioning on the living environment in which the occupant is sleeping.
Iwaki Akemi   +3 more
doaj   +1 more source

The impact of bright artificial white and 'blue-enriched' light on sleep and circadian phase during the polar winter.

open access: yes, 2020
Delayed sleep phase (and sometimes free-run) is common in the Antarctic winter (no natural sunlight) and optimizing the artificial light conditions is desirable.
Williams, P   +3 more
core   +1 more source

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