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Aging chronotype

Adrian Andrzej Chrobak, Anna Tereszko, Daria Dembinska-Krajewska, Aleksandra Arciszewska, Marcin Siwek, Dominika Dudek, Janusz Rybakowski
Chronotype is a stable trait presenting one's circardian preference. Since chronotype disturbances are common in patients with affective disorders, our aim is to evaluate chronotypes related to affective temperaments, measured with the temperament evaluation of Memphis, Pisa and San Diego-Autoquestionnaire (TEMPS-A). The study included 618 subjects (151 men and 467 women) within the framework of web-based design. They all fulfilled a questionnaire, consisting of the Composite Scale of Morningness (CSM), Sleep Wake Pattern Assessment Questionnaire (SWPAQ), and the TEMPS-A scale...
October 13, 2016: Chronobiology International
Pasquale K Alvaro, Rachel M Roberts, Jodie K Harris, Oliviero Bruni
BACKGROUND: This study assessed the direction of the relationship between symptoms of insomnia disorder, depression, various anxiety disorders and obsessive compulsive disorder (OCD) in adolescents after controlling for age, gender, chronotype, and outcome variable at baseline. METHODS: Data was collected in eight high schools in Adelaide, South Australia, at two time-points approximately 6 months apart. The study was completed by 318 and 255 high school students at baseline and follow-up, respectively, aged 12-18 (M=14...
October 3, 2016: Journal of Affective Disorders
Katarzyna Nowakowska-Domagała, Łukasz Mokros, Karolina Jabłkowska-Górecka, Joanna Grzelińska, Tadeusz Pietras
The study investigates the distribution of chronotypes among alcohol-dependent subjects and the relationship between personality and chronotype. Fifty-eight alcohol-dependent patients and 29 age-matched healthy controls were studied using Ogińska's Chronotype Questionnaire (ChQ), Eysenck's Personality Questionnaire - Revised (EPQ-R), Selzer's Michigan Alcoholism Screening Test (MAST) and a sociodemographic status questionnaire designed by the authors. The alcohol-dependent patients tended to be morning type, based on the morningness-eveningness ChQ scale, with a weakly marked rhythm, based on the distinctness ChQ scale...
August 12, 2016: Chronobiology International
Susan Kohl Malone, Babette Zemel, Charlene Compher, Margaret Souders, Jesse Chittams, Aleda Leis Thompson, Allan Pack, Terri H Lipman
The relationship between sleep duration and obesity in adolescents is inconclusive. This may stem from a more complex relationship between sleep and obesity than previously considered. Shifts toward evening preferences, later sleep-wake times and irregular sleep-wake patterns are typical during adolescence but their relationship to body mass index (BMI) has been relatively unexplored. This cross-sectional study examined associations between sleep duration, midpoint of sleep and social jet lag (estimated from 7 days of continuous actigraphy monitoring), and morningness/eveningness with BMIs (BMI z-scores) and waist-to-height ratios in 14-17-year-old adolescents...
August 11, 2016: Chronobiology International
Katarina Danielsson, Markus Jansson-Fröjmark, Jan-Erik Broman, Agneta Markström
Clinical trials with light therapy (LT) for delayed sleep phase disorder (DSPD) are sparse and little is known about factors that are favorable for improvements. In this study, LT with scheduled rise times was conducted at home for 14 days by 44 participants with DSPD aged 16-26 years. Primary outcomes were sleep onset and sleep offset. Potential predictors were demographic characteristics, chronotype, dim light melatonin onset, the number of days the LT lamp was used, the daily duration of LT, daytime sleepiness, anxiety, depression, worry, and rumination...
August 11, 2016: Behavioral Sleep Medicine
Niall M McGowan, Bogdan I Voinescu, Andrew N Coogan
Attention deficit hyperactivity disorder (ADHD) is a common neurobehavioural disorder which has been associated with sleep and circadian rhythm disturbances. Numerous studies have linked evening circadian typology with traits and behaviours associated with the disorder, although a precise reason for this relationship has not been clarified. The current study examines ADHD symptoms, impulsivity, cognitive failures, sleep quality and chronotype in a cohort of healthy young adults (N = 396). Results show significant, small magnitude associations between mid-point of sleep on free days, social jetlag (SJL) and ADHD symptoms and impulsivity, although not with cognitive failures...
September 26, 2016: Chronobiology International
Nicola L Barclay, Andriy Myachykov
INTRODUCTION: Attentional networks are sensitive to sleep deprivation and increased time awake. However, existing evidence is inconsistent and may be accounted for by differences in chronotype or time-of-day. We examined the effects of sustained wakefulness over a normal "socially constrained" day (following 18 h of sustained wakefulness), following a night of normal sleep, on visual attention as a function of chronotype. METHODS: Twenty-six good sleepers (mean age 25...
September 13, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
So-Jin Lee, Chul-Soo Park, Bong-Jo Kim, Cheol-Soon Lee, Boseok Cha, Yu Jin Lee, Minah Soh, Jin Ah Park, Park So Young, Eun Hye Song
Circadian typology and sleep quality may be essential factors associated with the promotion of resilience. However, previous studies investigating the association between circadian typology and resilience did not analyze the effects of sleep quality on resilience. Thus, the present study evaluated the association between circadian typology and resilience in Korean college students after controlling for sleep quality. Additionally, this study investigated several sleep-related variables, including sleep duration, social jetlag and sunlight exposure during the daytime, to examine the modifiable behavioral features of morningness and also investigated whether the findings regarding morningness-related modifiable habits were associated with resilience...
August 30, 2016: Chronobiology International
Yuriko Doi, Kaneyoshi Ishihara, Makoto Uchiyama
Our current 24-h society and the weekday-weekend switch of our social clocks may affect young children's sleep and circadian rhythms. However, such evidence is scarce. We conducted a nationwide epidemiological study of sleep and health in preschool children aged 3-5 years attending kindergarten or childcare centers in Japan, using stratified one-stage cluster sampling. The target population was 2 969 627 individuals (as of 1 April 2013). The Children's ChronoType Questionnaire was used to measure chronotypes (morning (M)-type, neither (N)-type and evening (E)-type), and weekday and weekend sleep-wake parameters...
August 18, 2016: Chronobiology International
Matias C A Melo, Rafael L C Abreu, Vicente B Linhares Neto, Pedro F C de Bruin, Veralice M S de Bruin
Despite a complex relationship between mood, sleep and rhythm, the impact of circadian disruptions on bipolar disorder (BD) has not been clarified. The purpose of this systematic review was to define current evidence regarding chronotype and circadian rhythm patterns in BD patients. 42 studies were included, involving 3432 BD patients. Disruption of the biological rhythm was identified, even in drug-naïve BD patients and independently of mood status. Daily profiles of melatonin levels and cortisol indicated a delayed phase...
July 1, 2016: Sleep Medicine Reviews
Beata Peplonska, Agnieszka Bukowska, Jenny Anne Lie, Jolanta Gromadzinska, Shanbeh Zienolddiny
OBJECTIVES: The aims of our study were to (i) investigate the association between rotating night shift work and blood concentrations of estradiol, testosterone and dehydroepiandrosterone sulfate (DHEAS) and (2) evaluate the role of their non-occupational determinants. METHODS: A cross-sectional study was conducted on 345 premenopausal and 187 postmenopausal nurses and midwives (263 women working rotating night shifts and 269 women working during days). Data from in-person interviews were used, anthropometric measurements were performed, and body mass index (BMI) and waist- to-hip ratio were calculated...
September 1, 2016: Scandinavian Journal of Work, Environment & Health
Christoph Randler, Lucia Wolfgang, Katharina Matt, Eda Demirhan, Mehmet Barış Horzum, Şenol Beşoluk
Background Mobile phones are an important part of adolescents' life. In this study, the relationships among smartphone addiction, age, gender, and chronotype of German adolescents were examined. Materials and methods Two studies focused on two different measures of smartphone addiction. The Smartphone Addiction Proneness Scale (SAPS) was applied to 342 younger adolescents (13.39 ± 1.77; 176 boys, 165 girls, and 1 not indicated) in Study 1 and the Smartphone Addiction Scale was applied to 208 older adolescents (17...
September 2016: Journal of Behavioral Addictions
Vsevolod Scherrer, Richard Roberts, Franzis Preckel
Meta-analyses suggest that morning-oriented students obtain better school grades than evening-oriented students. This finding has generally been found for students in high school using self-report data for the assessment of circadian preference. Two studies (N = 2718/192) investigated whether these findings generalize across samples (i.e. elementary school-aged students) and methods (i.e. parent reports). These studies also explored whether the relation between circadian preference and school achievement could be explained within an expectancy-value framework...
2016: Chronobiology International
Dora S Wynchank, Denise Bijlenga, Femke Lamers, Tannetje I Bron, Wim H Winthorst, Suzan W Vogel, Brenda W Penninx, Aartjan T Beekman, J Sandra Kooij
OBJECTIVE: We evaluated whether the association between Adult Attention-Deficit/Hyperactivity Disorder (ADHD) and Seasonal Affective Disorder (SAD) was mediated by the circadian rhythm. METHOD: Data of 2239 persons from the Netherlands Study of Depression and Anxiety (NESDA) were used. Two groups were compared: with clinically significant ADHD symptoms (N = 175) and with No ADHD symptoms (N = 2064). Sleep parameters were sleep-onset and offset times, mid sleep and sleep duration from the Munich Chronotype Questionnaire...
October 2016: Journal of Psychiatric Research
T Ruiz-Lozano, J Vidal, A de Hollanda, M Canteras, M Garaulet, M Izquierdo-Pulido
BackgroundChronotype has been related to obesity and metabolic disturbances. However, little is known about the relationship between circadian preferences and genetic background in CLOCK genes with obesity and weight loss among severe obese patients after bariatric surgery.ObjectiveThe research goals were (1) to examine whether evening chronotype is related to obesity and weight loss evolution in severe obese followed during six years after bariatric surgery and (2) to examine potential interactions between circadian preferences and CLOCK 3111T/C for obesity in this population...
June 24, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
Pierre Alexis Geoffroy, Ludovic Samalin, Pierre-Michel Llorca, Emmanuel Curis, Frank Bellivier
BACKGROUND: Lithium (Li) is the first-line treatment for bipolar disorder (BD), but its mechanisms of action remain unknown. Although the chronobiological action of Li is well documented in animals, its effects on sleep and chronotypes in remitted BD patients have never been investigated. METHODS: OPTHYMUM is a multicenter, cross-sectional, observational study conducted in France. We compared the sleep (Pittsburgh Sleep Quality Index, PSQI) and chronotypes (Composite Scale of Morningness, CSM) of 525 euthymic adult bipolar outpatients with (n=149) and without (n=376) current Li treatment...
November 1, 2016: Journal of Affective Disorders
Sarah-Jane Paine, Philippa H Gander
Factors contributing to sleep timing and sleep restriction in daily life include chronotype and less flexibility in times available for sleep on scheduled days versus free days. There is some evidence that these two factors interact, with morning types and evening types reporting similar sleep need, but evening types being more likely to accumulate a sleep debt during the week and to have greater sleep extension on weekend nights. The aim of the present study was to evaluate the independent contributions of circadian phase and weekend-to-weekday variability to sleep timing in daily life...
2016: Chronobiology International
Mirkka Maukonen, Noora Kanerva, Timo Partonen, Erkki Kronholm, Hanna Konttinen, Heini Wennman, Satu Männistö
Unhealthy diet has been associated with obesity. Evening type has been associated with unhealthier food and nutrient intake that could predict a higher risk of obesity among them as compared to morning type. However, thus far no study has examined the interrelationships between chronotype, a healthy diet and obesity. We examined whether a healthy diet mediates the association between chronotype and obesity and whether chronotype modifies the association between a healthy and obesity. The National FINRISK 2007 Study included 4421 subjects aged 25-74 years...
2016: Chronobiology International
John Rodwell, Julian Fernando
PURPOSE: Despite the prevalence of shiftwork, the mechanisms underlying its effects on nurses' well-being and adaptation to the shifts are not fully understood. This study examines whether the characteristics of the person, particularly chronotype, and aspects of the situation (i.e., shift schedule and the nature of work on each shift for each work context) affect job-specific and general well-being above and beyond potential confounds such as age and negative affectivity (NA). DESIGN: Primarily surveys of Australian nurses (N = 446) in three contexts (general acute hospital, maternity hospital, aged care)...
July 2016: Journal of Nursing Scholarship
Hieronymus J M Gijselaers, Barberà Elena, Paul A Kirschner, Renate H M de Groot
Biological lifestyle factors (BLFs) such as physical activity, sleep, and nutrition play a role in cognitive functioning. Research concerning the relation between BLFs and cognitive performance is scarce however, especially in young and middle-aged adults. Research has not yet focused on a multidisciplinary approach with respect to this relation in the abovementioned population, where lifestyle habits are more stable. The aim of this study was to examine the contribution of these BLFs to cognitive performance...
2016: Frontiers in Psychology
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