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https://www.readbyqxmd.com/read/29031762/sleep-and-cognitive-performance-cross-sectional-associations-in%C3%A2-the%C3%A2-uk-biobank
#1
Simon D Kyle, Claire E Sexton, Bernd Feige, Annemarie I Luik, Jacqueline Lane, Richa Saxena, Simon G Anderson, David A Bechtold, William Dixon, Max A Little, David Ray, Dieter Riemann, Colin A Espie, Martin K Rutter, Kai Spiegelhalder
OBJECTIVE: The relationship between insomnia symptoms and cognitive performance is unclear, particularly at the population level. We conducted the largest examination of this association to date through analysis of the UK Biobank, a large population-based sample of adults aged 40-69 years. We also sought to determine associations between cognitive performance and self-reported chronotype, sleep medication use and sleep duration. METHODS: This cross-sectional, population-based study involved 477,529 participants, comprising 133,314 patients with frequent insomnia symptoms (age: 57...
October 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29031757/what-predicts-inattention-in-adolescents-an-experience-sampling-study-comparing-chronotype-subjective-and-objective-sleep-parameters
#2
Timo Hennig, Katarina Krkovic, Tania M Lincoln
OBJECTIVE: Many adolescents sleep insufficiently, which may negatively affect their functioning during the day. To improve sleep interventions, we need a better understanding of the specific sleep-related parameters that predict poor functioning. We investigated to which extent subjective and objective parameters of sleep in the preceding night (state parameters) and the trait variable chronotype predict daytime inattention as an indicator of poor functioning. METHODS: We conducted an experience-sampling study over one week with 61 adolescents (30 girls, 31 boys; mean age = 15...
October 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28994246/time-to-learn-how-chronotype-impacts-education
#3
REVIEW
Giulia Zerbini, Martha Merrow
A growing body of literature has linked chronotype and sleep to school performance. Chronotype is under the control of the circadian clock and refers to sleep timing and diurnal preferences. Chronotype changes with age and is latest during adolescence, giving rise to a mismatch between the (late) circadian clock and the (early) school clock. In general, evening (late) chronotypes obtain lower grades. School performance is influenced by many other factors, such as motivation, intelligence, and conscientiousness...
October 10, 2017: PsyCh Journal
https://www.readbyqxmd.com/read/28977221/chronotype-and-work-shift-in-nursing-workers-of-university-hospitals
#4
Rosângela Marion da Silva, Regina Célia Gollner Zeitoune, Carmem Lúcia Colomé Beck, Milva Maria Figueiredo de Martino, Francine Cassol Prestes, Marli Maria Loro
Objective: To identify the predominant chronotype in nursing workers who work in surgical clinics of university hospitals and to verify the association with work shift. Method: Cross-sectional study, performed in surgical clinics of university hospitals in the Southern region of Brazil. The sample of 270 nursing workers answered questions of socio-occupational characterization, of health and the Morningness-Eveningness Questionnaire of Horne and Östberg. We performed a descriptive and bivariate analysis with the help of the SPSS software and confidence interval of 95%...
September 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/28944680/chronotypes-and-circadian-timing-in-migraine
#5
Wpj van Oosterhout, Ejw van Someren, G G Schoonman, M A Louter, G J Lammers, M D Ferrari, G M Terwindt
Background It has been suggested that migraine attacks strike according to circadian patterns and that this might be related to individual chronotype. Here we evaluated and correlated individual chronotypes, stability of the circadian rhythm, and circadian attack timing in a large and well-characterised migraine population. Methods In 2875 migraine patients and 200 non-headache controls we assessed differences in: (i) distribution of chronotypes (Münich Chronotype Questionnaire); (ii) the circadian rhythm's amplitude and stability (Circadian Type Inventory); and (iii) circadian timing of migraine attacks...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28884932/the-relationship-between-depression-and-chronotype-a-longitudinal-assessment-during-childhood-and-adolescence
#6
Dustin A Haraden, Benjamin C Mullin, Benjamin L Hankin
BACKGROUND/OBJECTIVE: During adolescence, chronotype shifts toward "eveningness." "Eveningness" is related to negative physical and mental health outcomes. Little is known about what influences the shift in chronotype beyond pubertal status. The current study examined the influence of earlier depression predicting later individual differences in adolescent chronotype, accounting for pubertal status, and the prospective prediction of later increases in depression from earlier chronotype...
October 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/28880049/sleep-and-glycemic-control-in-adolescents-with-type-1-diabetes
#7
Julia von Schnurbein, Claudia Boettcher, Stephanie Brandt, Beate Karges, Desiree Dunstheimer, Angela Galler, Christian Denzer, Friederike Denzer, Heike Vollbach, Martin Wabitsch, Till Roenneberg, Celine Vetter
BACKGROUND: Increasing evidence link sleep curtailment and circadian misalignment with adverse metabolic outcome. Adolescents might be most affected, given their late sleep timing and early school and work start times. OBJECTIVE: Our aim was to examine the impact of poor sleeping habits on glycemic control in adolescents with type 1 diabetes. SUBJECTS AND METHODS: This was a non-interventional multicenter study across Germany recruiting pubertally mature adolescents with type 1 diabetes...
June 14, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28769855/ratings-of-perceived-exertion-and-self-reported-mood-state-in-response-to-high-intensity-interval-training-a-crossover-study-on-the-effect-of-chronotype
#8
Jacopo A Vitale, Antonio La Torre, Roberto Baldassarre, Maria F Piacentini, Matteo Bonato
The aim of this study was to investigate the influence of chronotype on mood state and ratings of perceived exertion (RPE) before and in response to acute high intensity interval exercise (HIIE) performed at different times of the day. Based on the morningness-eveningness questionnaire, 12 morning-types (M-types; N = 12; age 21 ± 2 years; height 179 ± 5 cm; body mass 74 ± 12 kg) and 11 evening-types (E-types; N = 11; age 21 ± 2 years; height 181 ± 11 cm; body mass 76 ± 11 kg) were enrolled in a randomized crossover study...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28707304/actigraph-measures-of-sleep-among-female-hospital-employees-working-day-or-alternating-day-and-night-shifts
#9
Jill Korsiak, Joan Tranmer, Michael Leung, Michael M Borghese, Kristan J Aronson
Sleep disturbance is common among shift workers, and may be an important factor in the effect of shift work on chronic disease development. In this cross-sectional study, we described sleep patterns of 294 female hospital workers (142 alternating day-night shift workers, 152 day workers) and determined associations between shift work and sleep duration. Rest-activity cycles were recorded with the ActiGraph GT3X+ for 1 week. Analyses were stratified by chronotype of shift workers. Using all study days to calculate average sleep duration, shift workers slept approximately 13 min less than day workers during main sleep periods, while 24-h sleep duration did not differ between day workers and shift workers...
July 14, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28701566/chronotype-variation-drives-night-time-sentinel-like-behaviour-in-hunter-gatherers
#10
David R Samson, Alyssa N Crittenden, Ibrahim A Mabulla, Audax Z P Mabulla, Charles L Nunn
Sleep is essential for survival, yet it also represents a time of extreme vulnerability to predation, hostile conspecifics and environmental dangers. To reduce the risks of sleeping, the sentinel hypothesis proposes that group-living animals share the task of vigilance during sleep, with some individuals sleeping while others are awake. To investigate sentinel-like behaviour in sleeping humans, we investigated activity patterns at night among Hadza hunter-gatherers of Tanzania. Using actigraphy, we discovered that all subjects were simultaneously scored as asleep for only 18 min in total over 20 days of observation, with a median of eight individuals awake throughout the night-time period; thus, one or more individuals was awake (or in light stages of sleep) during 99...
July 12, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28689312/sleep-chronotype-and-sleep-hygiene-in-children-with-attention-deficit-hyperactivity-disorder-autism-spectrum-disorder-and-controls
#11
K B van der Heijden, R J Stoffelsen, A Popma, H Swaab
Sleep problems are highly prevalent in ADHD and autism spectrum disorder (ASD). Better insight in the etiology is of clinical importance since intervention and prevention strategies of sleep problems are directed at underlying mechanisms. We evaluated the association of sleep problems and sleep patterns with sleep hygiene (behavioral/environmental practices that influence sleep quality, e.g. caffeine use), access to electronic media, chronotype, and anxiety/depression in children aged 6-12 years with ADHD, ASD, or typical development (TD) using parental questionnaires...
July 8, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28636610/chronotypes-in-the-us-influence-of-age-and-sex
#12
Dorothee Fischer, David A Lombardi, Helen Marucci-Wellman, Till Roenneberg
An individual's chronotype reflects how the circadian system embeds itself into the 24-h day with rhythms in physiology, cognition and behavior occurring accordingly earlier or later. In view of an increasing number of people working at unusual times and linked health and safety risks, the wide range in human chronotypes may provide opportunities to allow people to work (and sleep) at times that are in synch with their circadian physiology. We aimed at estimating the distribution of chronotypes in the US population by age and sex...
2017: PloS One
https://www.readbyqxmd.com/read/28630583/acute-modification-of-cardiac-autonomic-function-of-high-intensity-interval-training-in-collegiate-male-soccer-players-with-different-chronotype-a-cross-over-study
#13
Matteo Bonato, Luca Agnello, Letizia Galasso, Angela Montaruli, Eliana Roveda, Giampiero Merati, Antonio La Torre, Jacopo A Vitale
The purpose of this study was to evaluate if the time of the day (8.00 a.m. vs 8.00 p.m.) and chronotype could influence autonomic cardiac control in soccer players in relation to an acute session of high-intensity interval training. The morningness-eveningness questionnaire was administered to recruit Morning-type and Evening-type collegiate male soccer players. Therefore, 24 players (12 Morning-types and 12 Evening-types) were randomly assigned, to either morning (n = 12; age 23 ± 3 years; height 1.75 ± 0...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28627300/reduced-effective-emotion-regulation-in-night-owls
#14
Alexandra L Watts, Ray Norbury
Previous research has demonstrated a clear link between late chronotype and depression. The vulnerability factors underpinning this link, however, are unclear. Here the relationship between two specific emotion regulation strategies, cognitive reappraisal and expressive suppression, and chronotype was investigated using multiple regression. Two hundred and forty participants (age range 18-80, 189 females) completed validated self-report questionnaires assaying chronotype, neuroticism, depressive symptomatology, sleep quality, and emotion regulation...
August 2017: Journal of Biological Rhythms
https://www.readbyqxmd.com/read/28613957/chronotype-preference-matters-for-depression-in-youth
#15
Wen-Hsuan Chiu, Hao-Jan Yang, Po-Hsiu Kuo
Morningness/eveningness (M/E) preference is an important circadian rhythm indicator with strong individual variation. M/E chronotype has been found to be correlated with depression in adults, yet the relationship is less clear in children and adolescents. Additionally, poor sleep quality is another commonly studied risk factor for depression. The aims of the present study are to investigate the independent effects of M/E chronotype on youth depression using both self-report and parental-report questionnaires...
June 14, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28574288/chronotype-and-its-relationship-with-sleep-disorders-in-children-with-attention-deficit-hyperactivity-disorder
#16
Fatma Benk Durmuş, Ayşe Rodopman Arman, Ayşe Burcu Ayaz
Chronotype can be classified as morningness types, people who prefer morning hours for their physical and mental activities; eveningness types, people who prefer the afternoon or evening hours; and intermediate types, those who show characteristics of both morningness and eveningness types. Attention deficit hyperactivity disorder (ADHD) has been linked with disturbances in chronotype, particularly increased eveningness. Despite the possibility of an association between chronotypes, sleep disturbances and ADHD symptoms, there is little evidence of this association considering the child population...
June 2, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28537801/association-of-chronotype-and-social-jetlag-with-human-non-verbal-intelligence
#17
A S Panev, T A Tserne, A S Polugrudov, L A Bakutova, N B Petrova, O V Tatarinova, O N Kolosova, M F Borisenkov
The aim of this study was to evaluate the effects of chronotype and social jetlag (SJL) on intelligence. Subjects were aged 14-25 years (n = 1008). A significant effect of intelligence on academic performance, as measured by the Raven's Standard Progressive Matrices test, was found (F2,917 = 11.75, P < 0.0001, η(2) = 0.03). When SJL was less than 2 hours, the intelligence of people with late chronotype was found to be higher than that of subjects with early and intermediate chronotypes (F2,305 = 3.12, P < 0...
2017: Chronobiology International
https://www.readbyqxmd.com/read/28525634/association-between-weekend-catch-up-sleep-and-lower-body-mass-population-based-study
#18
Hee-Jin Im, Shin-Hye Baek, Min Kyung Chu, Kwang Ik Yang, Won-Joo Kim, Seong-Ho Park, Robert J Thomas, Chang-Ho Yun
Study Objectives: To determine if weekend catch-up sleep (CUS) impacts body mass index (BMI) in the general population. Methods: A stratified random sample (2156 subjects; age 19-82 years old, 43.0 ± 14.5; 1183 male) from the general population was evaluated, in 2010, using face-to-face interviews about sociodemographic characteristics, height, weight, habitual sleep duration, and time-in-bed at night on weekdays and weekend, sleep-related profiles, mood and anxiety scales, and comorbid-medical conditions...
July 1, 2017: Sleep
https://www.readbyqxmd.com/read/28463712/the-relationship-between-chronotype-and-depressive-symptoms-a-meta-analysis
#19
REVIEW
Jacky Au, John Reece
BACKGROUND: Expanding our understanding of the factors that influence depression is crucial for prognosis and treatment. In light of increasing evidence of an association between disrupted circadian rhythms and affective symptoms, a meta-analysis was used to examine the relationship between an eveningness chronotype and depression. METHODS: Electronic searches of the PsycINFO, Medline, Scopus, and Google Scholar databases were conducted in February 2016. Relevant reviews, related journals, and reference lists were manually searched...
April 26, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28462736/spanish-adaptation-of-the-morningness-eveningness-stability-scale-improved-messi
#20
Juan F Díaz-Morales, Christoph Randler
The aim of the present study was to conduct the preliminary adaptation of the Morningness-Eveningness-Stability-Scale improved (MESSi) to Spanish population, testing its factor structure and construct validity. Participants were 261 adults (65% women; M = 31.4, SD = 12.01) who filled out measures of Morningness-Eveningness (MESSi and CSM), sleep habits, personality traits, positive and negative affect, and subjective level of alertness during the day. Psychometric results supported a three factorial model with the factors Morning Affect, Eveningness and Distinctness (RMSEA = ...
May 2, 2017: Spanish Journal of Psychology
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