Results 91 to 100 of about 7,052 (194)

Association of Chronotypes and Sleep Disturbance with Perceived Job Stressors and Stress Response: A Covariance Structure Analysis

Neuropsychiatric Disease and Treatment, 2020
Hitoshi Miyama,1,2 Akiyoshi Shimura,1 Wataru Furuichi,1 Tomoteru Seki,1 Kotaro Ono,1 Jiro Masuya,1 Yuko Odagiri,3 Shigeru Inoue,3 Takeshi Inoue1 1Department of Psychiatry, Tokyo Medical University, Tokyo 160-0023, Japan; 2Department of Psychiatry ...
Miyama H, Shimura A, Furuichi W, Seki T, Ono K, Masuya J, Odagiri Y, Inoue S, Inoue T   +8 more
doaj  

Diurnal Variations in Vascular Endothelial Vasodilation Are Influenced by Chronotype in Healthy Humans

Frontiers in Physiology, 2019
Introduction: The time of day when cardiovascular events are most likely to occur is thought to be aligned with the circadian rhythm of physiological variables.
Elise R. Facer-Childs, Elise R. Facer-Childs, Elise R. Facer-Childs, Elise R. Facer-Childs, Katie Pake, Vivian Y. Lee, Samuel J. E. Lucas, Samuel J. E. Lucas, George M. Balanos   +8 more
doaj   +1 more source

Influence of Intravenous Norepinephrine Administration on Melatonin Plasma Concentration in Awake and Anaesthetised Healthy Adult Volunteers

Journal of Pineal Research, Volume 78, Issue 6, November 2026.
ABSTRACT Melatonin (MEL) is an endogenous hormone that regulates circadian rhythm, immune function and oxidative stress responses. Norepinephrine (NE), an endogenous catecholamine, increases blood pressure through the sympathetic nervous system and is commonly administered intraoperatively or in the clinically ill patient for hemodynamic support ...
Marko MIrza Sahinovic, Ilonka Nadia de Keijzer, Manon Stern, Karin Marianne Vermeulen, Michel Maria Roger Fernand Struys, Anthony Ray Absalom, Johannes Pieter van den Berg, Jaap Jan Vos   +7 more
wiley   +1 more source

Impact of seasons on an individual’s chronotype: current perspectives

, 2018
Nyambura Shawa,1 Dale E Rae,2 Laura C Roden1 1Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa; 2Health through Physical Activity, Lifestyle and Sport Research Centre, Department of Human Biology, Faculty of ...
Rae DE, Roden LC, Shawa N
core  

Associations Between Chronotype, Genetic Susceptibility and Risk of Colorectal Cancer in UK Biobank

Journal of Epidemiology and Global Health
Background Sleep problems are common in the general population, with evidence suggesting a link between circadian rhythm disruptions and various health outcomes. However, the role of chronotype in influencing colorectal cancer (CRC) risk, particularly in
Huajie Xie, Zhihui Xi, Suqi Wen, Runbei Zhang, Yongfeng Liu, Jiabin Zheng, Huolun Feng, Deqing Wu, Yong Li   +8 more
doaj   +1 more source

The Sleepless Watch: Perceived Sleep Quality of Nurses Working in High‐Intensity Settings

Nursing in Critical Care, Volume 31, Issue 6, November 2026.
ABSTRACT Background Poor sleep quality is a global health concern among nurses, particularly in high‐intensity settings. Unpredictable workloads, extended shifts and high patient acuity compromise sleep quality, negatively affecting nurses' well‐being and patient outcomes.
Ngilozi Ngenzeni Shabangu, Ntombifikile Klaas, Nomonde Goodness Makhudu, Digapeng Catherine Maditjane, Siyabonga Buthelezi   +4 more
wiley   +1 more source

Variation in Avian Chronotype

Early birds and night owls are common descriptions for people with different sleep-awake habits. Indeed, individuals can consistently differ in their activity pattern (= chronotype) depending on their genetics and the environmental conditions. The underlying driver of these rhythms is the internal clock which adjusts its own speed to the day-night ...
openaire   +4 more sources

The Effect of Behavioral Sleep Interventions on Measures of Obesity, Dietary Intake and Physical Activity in Adults With Poor Sleep Health: A Systematic Review, Meta‐Analysis and Meta‐Regression Analysis

Obesity Reviews, Volume 27, Issue 11, November 2026.
ABSTRACT Background As poor sleep negatively impacts on adiposity, there is interest in examining whether improving sleep can improve adiposity markers. We reviewed studies aimed at improving sleep using (1) cognitive behavioral therapy for insomnia (CBT‐I) and/or sleep hygiene and (2) sleep extension on adiposity markers, dietary intake, and physical ...
Samiul A. Mostafa, Pushpa Singh, Feaz Babwah, Wasim Hanif, George Balanos, Krishnarajah Nirantharakumar, Jason G. Ellis, Abd A. Tahrani   +7 more
wiley   +1 more source

Nonlinear and symptom specific associations between chronotype and depression

Scientific Reports
The chronotype of individuals has been found to be predictive of depression risk and associated with the severity of depression. However, since depression is a phenotypically heterogeneous disease, it seems improbable that chronotype plays a role in ...
Lennart Seizer, Estefanía Martínez-Albert, Johanna Löchner   +2 more
doaj   +1 more source

Chronotype and sleep duration: The influence of season of assessment

Chronobiology International, 2014
Little is known about human entrainment under natural conditions, partly due to the complexity of human behavior, torn between biological and social time and influenced by zeitgebers (light-dark cycles) that are progressively "polluted" (and thereby weakened) by artificial light.
Karla V. Allebrandt, Maris Teder-Laving, Thomas Kantermann, Annette Peters, Harry Campbell, Igor Rudan, James F. Wilson, Andres Metspalu, Till   +8 more
openaire   +3 more sources