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Artykuły w czasopismach na temat „Sleep timing”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 31 sierpnia 2024

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1

Yan, Li-Ming, Hai-Jun Li, Qi Fan, Yi-Dong Xue, and Tao Wang. "Chronobiological perspectives: Association between meal timing and sleep quality." PLOS ONE 19, no. 8 (August 1, 2024): e0308172. http://dx.doi.org/10.1371/journal.pone.0308172.

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Background Meal timing has been associated with metabolism and cardiovascular diseases; however, the relationship between meal timing and sleep quality remains inconclusive. Objective This study aims to investigate the relationship between meal timing and sleep quality from a chronobiological perspective. Methods This study utilized data from the NHANES for the years 2005–2008, including a cohort of 7,023 participants after applying exclusion criteria. Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI). Meal timing was analyzed based on two 24-hour dietary recalls from

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Wescott, D. L., K. D. Dickman, P. L. Franzen, B. P. Hasler, and K. A. Roecklein. "1091 The Effects Of Sleep Duration, Timing, And Depressed Mood On Daily Eating Patterns." Sleep 43, Supplement_1 (April 2020): A415. http://dx.doi.org/10.1093/sleep/zsaa056.1086.

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Abstract Introduction Insufficient sleep, circadian misalignment, and altered eating patterns are linked to depression. Despite the temporal association between the sleep/wake and feed/fast cycles, it is unclear how depression severity influences this relationship. Methods Sixty-eight participants ages 18-65 years across the depression continuum wore an Actiwatch for 5-17 nights and reported daily meal times (730 nights total). Multilevel models tested previous night’s sleep timing and duration as predictors of the length of the next day’s eating window. Within-person sleep duration and timing

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Kelly, Rachael M., John H. McDermott, and Andrew N. Coogan. "Differences in Sleep Offset Timing between Weekdays and Weekends in 79,161 Adult Participants in the UK Biobank." Clocks & Sleep 4, no. 4 (November 22, 2022): 658–74. http://dx.doi.org/10.3390/clockssleep4040050.

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Variability in the timing of daily sleep is increasingly recognized as an important factor in sleep and general physical health. One potential driver of such daily variations in sleep timing is different work and social obligations during the “working week” and weekends. To investigate the nature of weekday/weekend differences in the timing of sleep offset, we examined actigraphy records of 79,161 adult participants in the UK Biobank who wore an actiwatch for 1 week. The time of sleep offset was found to be on average 36 min later on weekends than on weekdays, and when this difference was expr

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von Gall, Charlotte, Leon Holub, Amira A. H. Ali, and Simon Eickhoff. "Timing of Deep and REM Sleep Based on Fitbit Sleep Staging in Young Healthy Adults under Real-Life Conditions." Brain Sciences 14, no. 3 (March 6, 2024): 260. http://dx.doi.org/10.3390/brainsci14030260.

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Sleep timing is controlled by intrinsic homeostatic and circadian components. The circadian component controls the chronotype, which is defined by the propensity to sleep at a particular clock time. However, sleep timing can be significantly affected by external factors such as the morning alarm clock. In this study, we analysed the timing of deep and REM sleep as well as the composition of REM sleep using Fitbit sleep staging in young healthy adults (n = 59) under real-life conditions. Sleep stage percentiles were correlated with the timing of total sleep in time after sleep onset for the hom

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Jeon, Bomin, and Eileen Chasens. "661 Chronotype, Mood, and Diabetes-Related Distress in Adults with Type 2 Diabetes." Sleep 44, Supplement_2 (May 1, 2021): A258—A259. http://dx.doi.org/10.1093/sleep/zsab072.659.

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Abstract Introduction Chronotype refers to an individual’s preferred timing of sleep and wakefulness, which can be classified as ‘normal’ or ‘late’ chronotypes. The purpose of this study was to examine whether late sleep timing was associated with impaired mood and diabetes-related distress in persons with type 2 diabetes (T2D). Methods The study is a secondary analysis of pooled cross-sectional baseline data from two studies of treatment of obstructive sleep apnea (R01-DK96028) and insomnia (K24-NR016685) in persons with T2D. Sleep timing was measured by the bedtime from a 7-day sleep diary.

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Chaput, Jean-Philippe, Caroline Dutil, Ryan Featherstone, Robert Ross, Lora Giangregorio, Travis J. Saunders, Ian Janssen, et al. "Sleep timing, sleep consistency, and health in adults: a systematic review." Applied Physiology, Nutrition, and Metabolism 45, no. 10 (Suppl. 2) (October 2020): S232—S247. http://dx.doi.org/10.1139/apnm-2020-0032.

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The objective of this systematic review was to examine the associations between sleep timing (e.g., bedtime/wake-up time, midpoint of sleep), sleep consistency/regularity (e.g., intra-individual variability in sleep duration, social jetlag, catch-up sleep), and health outcomes in adults aged 18 years and older. Four electronic databases were searched in December 2018 for articles published in the previous 10 years. Fourteen health outcomes were examined. A total of 41 articles, including 92 340 unique participants from 14 countries, met inclusion criteria. Sleep was assessed objectively in 37%

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Duffy, Jeanne F., Jamie M. Zeitzer, David W. Rimmer, Elizabeth B. Klerman, Derk-Jan Dijk, and Charles A. Czeisler. "Peak of circadian melatonin rhythm occurs later within the sleep of older subjects." American Journal of Physiology-Endocrinology and Metabolism 282, no. 2 (February 1, 2002): E297—E303. http://dx.doi.org/10.1152/ajpendo.00268.2001.

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We investigated the relationship between sleep timing and the timing of the circadian rhythm of plasma melatonin secretion in a group of healthy young and older subjects without sleep complaints. The timing of sleep and the phase of the circadian melatonin rhythm were earlier in the older subjects. The relationship between the plasma melatonin rhythm and the timing of sleep was such that the older subjects were sleeping and waking earlier relative to their nightly melatonin secretory episode. Consequently, the older subjects were waking at a time when they had higher relative melatonin levels,

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AKERSTEDT, TORBJORRN, KEN HUME, DAVID MINORS, and JIM WATERHOUSE. "Good sleep - its timing and physiological sleep characteristics." Journal of Sleep Research 6, no. 4 (December 1997): 221–29. http://dx.doi.org/10.1111/j.1365-2869.1997.00221.x.

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Randler, Christoph. "Sleep, sleep timing and chronotype in animal behaviour." Animal Behaviour 94 (August 2014): 161–66. http://dx.doi.org/10.1016/j.anbehav.2014.05.001.

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Yoshitake, Rikako, Insung Park, Hitomi Ogata, and Naomi Omi. "Meal Timing and Sleeping Energy Metabolism." Nutrients 15, no. 3 (February 2, 2023): 763. http://dx.doi.org/10.3390/nu15030763.

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There is a physiological link between sleep and eating. Insufficient sleep is a risk factor for overeating and excess body weight gain, and molecules such as orexin and insulin play a role in the control of sleep and energy intake. The effects of dietary timing on sleep and energy metabolism were examined in this review. First, we examined sleep energy metabolism and sleep quality under time-restricted eating, including skipping breakfast or dinner. Second, the mechanisms, benefits, and translational potential of the effects of time-restricted diets on sleep were discussed. Time-restricted eat

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Cox, Rebecca, Brandon Aylward, Isabella Macarelli, and Michele Okun. "0954 Associations Between Sleep Duration and Timing and Postpartum Anxiety Symptoms." SLEEP 47, Supplement_1 (April 20, 2024): A409. http://dx.doi.org/10.1093/sleep/zsae067.0954.

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Abstract Introduction Postpartum anxiety is understudied and underdiagnosed in postpartum women, despite being more common than postpartum depression. Given associations between postpartum anxiety and adverse maternal and infant outcomes, it is crucial to identify patterns and predictors of postpartum anxiety. We examined the associations between sleep duration and timing and postpartum anxiety over 6 months following delivery. Methods Pregnant women (n=147; 30-39 weeks) with a history of depression completed the Pittsburgh Sleep Quality Index (PSQI), Edinburgh Postnatal Depression Scale, and

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Jansen, Erica C., Ana Baylin, Alejandra Cantoral, Martha María Téllez Rojo, Helen J. Burgess, Louise M. O'Brien, Libni Torres Olascoaga, and Karen E. Peterson. "Dietary Patterns in Relation to Prospective Sleep Duration and Timing among Mexico City Adolescents." Nutrients 12, no. 8 (July 31, 2020): 2305. http://dx.doi.org/10.3390/nu12082305.

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Adult studies show that healthy diet patterns relate to better sleep. However, evidence during adolescence, when sleep may change dramatically, is lacking. Within a cohort of 458 Mexican adolescents, we examined whether consumption of three dietary patterns was associated with sleep duration and timing measured 2 years later, as well as changes in sleep timing and duration. Dietary patterns (identified a posteriori in a prior analysis) were assessed with a baseline food frequency questionnaire, and sleep was measured with wrist actigraphy at baseline and follow-up. Linear regression analyses a

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Kelly, Rachael M., John H. McDermott, and Andrew N. Coogan. "Thematic Daily Sleep Routine Analysis of Adults Not in Employment Living with Type 2 Diabetes Mellitus." Clocks & Sleep 6, no. 1 (December 29, 2023): 11–23. http://dx.doi.org/10.3390/clockssleep6010002.

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Background: Day-to-day variations in sleep timing have been associated with poorer glycemic control in type 2 diabetes mellitus, although the factors that influence this sleep timing variability are poorly understood. Methods: Daily routines of sleep in a sample of seventeen adults with type 2 diabetes mellitus who were either retired or not currently working were examined qualitatively through the application of semi-structured interviews and a thematic analysis of the resulting transcripts. Results: Four themes were identified: “Consistent Sleeping Patterns”, “Fluctuating Sleep Timing”, “Nig

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Jessen, Elena, Celine Vetter, Till Roenneberg, Klaus-Peter Liesenkötter, Helene Werner, Oskar Jenni, Erwin Lankes, et al. "Sleep Timing in Patients with Precocious and Delayed Pubertal Development." Clocks & Sleep 1, no. 1 (February 16, 2019): 140–50. http://dx.doi.org/10.3390/clockssleep1010013.

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Previous studies have reported a shift in the timing of sleep during adolescence toward a later time. To date, it is unclear whether hormonal changes during puberty might contribute to this change in sleeping behavior. We systematically assessed pubertal development and sleep timing in a cross-sectional case-control study in girls with precocious (n = 42) and boys with delayed pubertal development (n = 19). We used the Munich ChronoType Questionnaire and the Children’s ChronoType Questionnaire to assess sleep timing in patients and age- and sex-matched controls (n = 309) and used the midpoint

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Kang, Jee eun, Linying Ji, Orfeu Buxton, and Martin Sliwinski. "DAILY ASSOCIATIONS OF SOCIAL INTERACTIONS WITH OBJECTIVE SLEEP MEASURES AMONG OLDER ADULTS." Innovation in Aging 7, Supplement_1 (December 1, 2023): 57. http://dx.doi.org/10.1093/geroni/igad104.0181.

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Abstract Disturbed sleep is a common problem and can have profound effects on older adults. Social relationships are known to be associated with quantity and quality of sleep. To extend prior research, we examined the associations of daily social interactions and sleep, using objective sleep measures and an ecological momentary assessments (EMA) approach. Participants in the Einstein Aging Study (n=285, Mage=77, range=70-90, 68% women, 46% White, 40% Black) reported their recent social interactions and physical contact four times a day for 16 days via EMA on mobile phones. Objective sleep meas

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Hamilton, J. L., T. R. Goldstein, C. Sewall, J. Zelazny, N. Rode, B. Gibbons, and P. L. Franzen. "1000 Social Media Use And Actigraphic Measures Of Sleep Timing Among High-risk Adolescents." Sleep 43, Supplement_1 (April 2020): A379—A380. http://dx.doi.org/10.1093/sleep/zsaa056.996.

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Abstract Introduction Social media use is a risk factor for poor sleep among adolescents. It remains unclear whether social media use before bed impacts later sleep timing or whether youth turn to social media because of sleep problems, which impacts sleep timing. No study to date has examined this relationship using prospective designs and objective sleep measures among high-risk adolescents, who may be particularly vulnerable to social media use. Methods As a preliminary test of this relationship, 25 adolescents and young adults in an intensive outpatient program for depression and suicidali

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Swaminathan, Krithika, Elizabeth B. Klerman, and Andrew J. K. Phillips. "Are Individual Differences in Sleep and Circadian Timing Amplified by Use of Artificial Light Sources?" Journal of Biological Rhythms 32, no. 2 (April 2017): 165–76. http://dx.doi.org/10.1177/0748730417699310.

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Within the human population, there is large interindividual variability in the timing of sleep and circadian rhythms. This variability has been attributed to individual differences in sleep physiology, circadian physiology, and/or light exposure. Recent experimental evidence suggests that the latter is necessary to evoke large interindividual differences in sleep and circadian timing. We used a validated model of human sleep and circadian physiology to test the hypothesis that intrinsic differences in sleep and circadian timing are amplified by self-selected use of artificial light sources. We

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Fudge, Jennifer E., Emily T. Peterson, Shae-Lynn M. Koe, and Hans C. Dringenberg. "The Impact of Lunch Timing on Nap Quality." Clocks & Sleep 6, no. 3 (August 5, 2024): 402–16. http://dx.doi.org/10.3390/clockssleep6030027.

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Purpose: Previous research has established that food intake is a biological regulator of the human sleep–wake cycle. As such, the timing of eating relative to sleep may influence the quality of sleep, including daytime naps. Here, we examine whether the timing of lunch (1 h vs. 2 h interval between lunch and a napping opportunity) impacts the quality of an afternoon nap. Methods: Using a randomized within-subject design over two separate experimental sessions (7 days apart), participants (n = 40, mean age = 25.8 years) consumed lunch 1 h and 2 h prior to an afternoon nap opportunity. Polysomno

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Wirz-Justice, A. "S27-01 - Sleep timing and sleep manipulation as antidepressants." European Psychiatry 25 (2010): 91. http://dx.doi.org/10.1016/s0924-9338(10)70091-2.

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MacPherson, A. R., D. Schreiber, J. L. Imel, and N. D. Dautovich. "0728 Sleep Timing, Not Sleep Duration, Predicts Breakfast Intake." Sleep 41, suppl_1 (April 2018): A270. http://dx.doi.org/10.1093/sleep/zsy061.727.

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Chung, Nikola, Yu Sun Bin, Peter A. Cistulli, and Chin Moi Chow. "Does the Proximity of Meals to Bedtime Influence the Sleep of Young Adults? A Cross-Sectional Survey of University Students." International Journal of Environmental Research and Public Health 17, no. 8 (April 14, 2020): 2677. http://dx.doi.org/10.3390/ijerph17082677.

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Avoiding food before bedtime is a widely accepted sleep hygiene practice, yet few studies have assessed meal timing as a risk factor for disrupted sleep. This study examined the relationship between evening meal timing and sleep quality in young adults. A total of N = 793 participants (26% male) aged between 18 and 29 years responded to an online survey, which captured sociodemographic information, lifestyle variables, and sleep characteristics. Meal timing was defined as meals more than 3 h before or within 3 h of bedtime. The outcomes were as follows: one or more nocturnal awakenings, sleep

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Derby, Carol, Michelle Hood, Martica Hall, Hadine Joffe, Rebecca Thurston, Howard Kravitz, and Leslie Swanson. "SLEEP REGULARITY, SLEEP TIMING, AND COGNITIVE PERFORMANCE AMONG WOMEN ENTERING EARLY OLDER AGE." Innovation in Aging 7, Supplement_1 (December 1, 2023): 623–24. http://dx.doi.org/10.1093/geroni/igad104.2032.

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Abstract Poor sleep health is a modifiable behavior linked to cognitive impairment risk. While prior work has focused primarily on sleep quantity and quality, emerging evidence suggests the importance of sleep timing and regularity. We examined whether sleep timing and regularity were associated with cognitive performance within a diverse cohort of women ages 60.5-72.2 years, and tested whether associations were independent of sleep duration and quality (wake after sleep onset). The sample included 1178 SWAN women who completed 4-7 nights of actigraphy and cognitive testing at the 15th SWAN fo

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Hanlon, Erin, Wajdey Nesheiwat, Stephanie Sintetas, Eve Van Cauter, and Kristen Knutson. "019 A Simple, Objective Estimate of Dietary Timing as a Circadian Biomarker." Sleep 44, Supplement_2 (May 1, 2021): A9. http://dx.doi.org/10.1093/sleep/zsab072.018.

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Abstract Introduction The importance of diet for health has been recognized for centuries, yet, the focus has mostly been on what someone eats. Recently, however, focus has expanded to include when someone eats. Experimental studies that manipulated timing of food intake demonstrated effects on metabolic function. Most population-based studies have had to rely on self-reported methods to assess dietary behavior, including food logs or dietary recall, but self-report is subjective, error-prone, and burdensome. The goal of this analysis was to identify an objective estimate of dietary timing in

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Pande, Babita, Meenakshi Sinha, and Ramanjan Sinha. "229 Sleep-wake behavior, meal timings and digital media duration of Indians during COVID-19 Lockdown." Sleep 44, Supplement_2 (May 1, 2021): A91—A92. http://dx.doi.org/10.1093/sleep/zsab072.228.

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Abstract Introduction Lockdown and stay home order has been imposed on people in many countries including India to prevent the community transmission of COVID-19 pandemic. However this social restriction led to disturbed daily routine and lifestyle behaviour that is needed to be attended for proper therapeutic management of overall health during such crisis. The impact of lockdown on the most apparent behavioral changes viz. sleep-wake behaviour, major meal timings, and digital screen duration of Indians were investigated. In addition the effects of gender and age were explored. Methods After

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von Gall, Charlotte, Leon Holub, Martina Pfeffer, and Simon Eickhoff. "Chronotype-Dependent Sleep Loss Is Associated with a Lower Amplitude in Circadian Rhythm and a Higher Fragmentation of REM Sleep in Young Healthy Adults." Brain Sciences 13, no. 10 (October 19, 2023): 1482. http://dx.doi.org/10.3390/brainsci13101482.

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In modern society, the time and duration of sleep on workdays are primarily determined by external factors, e.g., the alarm clock. This can lead to a misalignment of the intrinsically determined sleep timing, which is dependent on the individual chronotype, resulting in reduced sleep quality. Although this is highly relevant given the high incidence of sleep disorders, little is known about the effect of this misalignment on sleep architecture. Using Fitbit trackers and questionnaire surveys, our study aims to elucidate sleep timing, sleep architecture, and subjective sleep quality in young he

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Dadzie, Adwoa, Lindsay Master, Emily Hohman, Erika Hernandez, Sara Tauriello, Ian Paul, Jennifer Savage, Stephanie Anzman-Frasca, and Orfeu Buxton. "0105 INSIGHT Study associations between sleep health and child behavior at age 6 years." SLEEP 46, Supplement_1 (May 1, 2023): A47. http://dx.doi.org/10.1093/sleep/zsad077.0105.

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Abstract Introduction Sub-optimal sleep duration, quality and timing are associated with the presence of disruptive behaviors in childhood. Previous studies have largely utilized parent-/teacher-report of children’s behaviors and focused on mean sleep duration and quality measures, ignoring sleep variability. This analysis uses actigraphy and standardized laboratory behavioral tasks to examine the associations of average levels and variability (SD) of sleep duration, timing, and quality with child behavior. Methods The Intervention Nurses Start Infants Growing on Healthy Trajectories (INSIGHT)

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Baron, K., L. Bardsley, K. J. Reid, L. F. Wolfe, M. Buman, M. Toledo, and P. C. Zee. "0060 Role Of Circadian Timing and Alignment In The Timing And Intensity Of Physical Activity." Sleep 41, suppl_1 (April 2018): A24. http://dx.doi.org/10.1093/sleep/zsy061.059.

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Chung, J., M. O. Goodman, T. Huang, M. Wallace, S. Bertisch, D. Johnson, and S. Redline. "0363 Racial/Ethnic Differences in Actigraphy, Questionnaire, and Polysomnography-Measured Indicators of Sleep Health and Sleep Quality: The Multi-Ethnic Study of Atherosclerosis." Sleep 43, Supplement_1 (April 2020): A138—A139. http://dx.doi.org/10.1093/sleep/zsaa056.360.

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Abstract Introduction Paradigm shifts in sleep research suggest the importance of considering multi-dimensional sleep health, compared to single metrics, to promote physical and mental well-being and to understand racial/ethnic disparities in sleep. Methods We used data from the Multi-Ethnic Study of Atherosclerosis (MESA; n = 1,740) to create a Sleep Health Score (SHS), including questionnaire (quality, sleepiness); 7-day actigraphy (total sleep time, sleep continuity [sleep maintenance efficiency], timing consistency [midpoint variability], fragmentation, wake after sleep onset, sleep onset

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Ceolin, Chiara, Federica Limongi, Paola Siviero, Caterina Trevisan, Marianna Noale, Filippo Catalani, Silvia Conti, et al. "Changes in Sleep Duration and Sleep Timing in the General Population from before to during the First COVID-19 Lockdown: A Systematic Review and Meta-Analysis." International Journal of Environmental Research and Public Health 21, no. 5 (May 2, 2024): 583. http://dx.doi.org/10.3390/ijerph21050583.

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Background: The COVID-19 lockdown had a profound effect on everyday life, including sleep health. This systematic review and meta-analysis evaluated changes in quantitative sleep parameters during the first lockdown compared with pre-lockdown in the general population. Methods: A search in scientific databases was performed to identify eligible observational studies from inception to 8 February 2023. We performed a random effects meta-analysis of those studies reporting (a) means of sleep duration, time in bed (TIB), and sleep timing (bedtime and wake-up time); (b) the percentages of atypical

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Van Reen, Eliza, Leila Tarokh, Tracy L. Rupp, Ron Seifer, and Mary A. Carskadon. "Does Timing of Alcohol Administration Affect Sleep?" Sleep 34, no. 2 (February 2011): 195–205. http://dx.doi.org/10.1093/sleep/34.2.195.

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Chen, Bo-chiuan, Dong-Chul Seo, Hsien-Chang Lin, and David Crandall. "Framework for estimating sleep timing from digital footprints." BMJ Innovations 4, no. 4 (August 30, 2018): 172–77. http://dx.doi.org/10.1136/bmjinnov-2018-000274.

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ObjectiveWe propose a method that estimates sleep timing from publicly observable activity on online social network sites. The method has the potential to minimise participant-related biases, does not require specialised equipment and can be applied to a large population.Materials and methodsWe propose a framework that estimates midpoints of habitual sleep time from activity records on a social media—Twitter. We identified sets of before-bedtime and after-wake-up tweets that marked the periods of reduced Twitter activity, which we use as a proxy of sleep. We then estimated the timing of sleep

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Griggs, Stephanie, Quiana Howard, Grant Pignatiello, Kingman Strohl, Chiang-Shan R. Li, Margaret Grey, Sybil Crawford, and Ronald Hickman. "0921 Pilot Cognitive Behavioral Sleep Health Randomized Controlled Trial for Young Adults with Type 1 Diabetes." SLEEP 47, Supplement_1 (April 20, 2024): A395. http://dx.doi.org/10.1093/sleep/zsae067.0921.

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Abstract Introduction Short sleep duration and inconsistent timing have been linked to poor glycemic target achievement and greater comorbidities in individuals with type 1 diabetes (T1D), particularly adults aged 18-26 years who achieve glycemic targets at the lowest rates (only 14%). Preliminary evidence supports cognitive behavioral sleep interventions (sleep extension + timing consistency) in improving the achievement of sleep and glycemic targets. The purpose of this pilot randomized controlled trial (RCT) was to determine the preliminary effects of a cognitive behavioral sleep health sel

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Rogers, Michelle, Alison M. Coates, and Siobhan Banks. "Meal timing, sleep, and cardiometabolic outcomes." Current Opinion in Endocrine and Metabolic Research 18 (June 2021): 128–32. http://dx.doi.org/10.1016/j.coemr.2021.03.006.

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GIRARD, TODD A., and J. ALLAN CHEYNE. "Timing of spontaneous sleep-paralysis episodes." Journal of Sleep Research 15, no. 2 (June 2006): 222–29. http://dx.doi.org/10.1111/j.1365-2869.2006.00512.x.

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Born, Jan, Kirsten Hansen, Lisa Marshall, Matthias Mölle, and Horst L. Fehm. "Timing the end of nocturnal sleep." Nature 397, no. 6714 (January 1999): 29–30. http://dx.doi.org/10.1038/16166.

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Cibella, F., O. Marrone, S. Sanci, V. Bellia, and G. Bonsignore. "Expiratory timing in obstructive sleep apnoeas." European Respiratory Journal 3, no. 3 (March 1, 1990): 293–98. http://dx.doi.org/10.1183/09031936.93.03030293.

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Diaphragmatic electromyogram was recorded during NREM sleep in 4 patients affected by obstructive sleep apnoea (OSA) syndrome in order to evaluate the behaviour of expiratory time (TE) in the course of the obstructive apnoea-ventilation cycle. The two components of TE, i.e. time of post-inspiratory inspiratory activity (TPIIA) and time of expiratory phase 2 (TE2) were separately analysed. TPIIA showed a short duration, with only minor variations, within the apnoea, while its duration was more variable and longer in the interapnoeic periods: the longest TPIIA values were associated with the hig

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Meyhöfer, Svenja, Rodrigo Chamorro, Manfred Hallschmid, Denisa Spyra, Nelli Klinsmann, Bernd Schultes, Hendrik Lehnert, Sebastian M. Meyhöfer, and Britta Wilms. "Late, but Not Early, Night Sleep Loss Compromises Neuroendocrine Appetite Regulation and the Desire for Food." Nutrients 15, no. 9 (April 23, 2023): 2035. http://dx.doi.org/10.3390/nu15092035.

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Objective: There is evidence that reduced sleep duration increases hunger, appetite, and food intake, leading to metabolic diseases, such as type 2 diabetes and obesity. However, the impact of sleep timing, irrespective of its duration and on the regulation of hunger and appetite, is less clear. We aimed to evaluate the impact of sleep loss during the late vs. early part of the night on the regulation of hunger, appetite, and desire for food. Methods: Fifteen normal-weight ([mean ± SEM] body-mass index: 23.3 ± 0.4 kg/m2) healthy men were studied in a randomized, balanced, crossover design, inc

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Dunietz, Liana, Anna Olson, Lucas Tittle, David Kalmbach, D'Angela Pitts, Chia-Lun Yang, Erica Jansen, et al. "0727 Sleep Timing and Depression Risk in Pregnancy." SLEEP 47, Supplement_1 (April 20, 2024): A311. http://dx.doi.org/10.1093/sleep/zsae067.0727.

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Abstract Introduction There is growing evidence that sleep timing is linked to health outcomes. Poorly timed sleep has been associated with metabolic risk factors and mood problems although there is a lack of data in the pregnant population. Emerging data suggest that late sleep timing during pregnancy may be associated with gestational diabetes, gestational hypertension, and preterm birth. However, data on sleep timing and mood during pregnancy are lacking. Methods Pregnant women were recruited from prenatal clinics at a large Midwestern tertiary referral center. Women were eligible if they w

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Zerón-Rugerio, María Fernanda, Giovana Longo-Silva, Álvaro Hernáez, Ana Eugenia Ortega-Regules, Trinitat Cambras, and Maria Izquierdo-Pulido. "The Elapsed Time between Dinner and the Midpoint of Sleep Is Associated with Adiposity in Young Women." Nutrients 12, no. 2 (February 5, 2020): 410. http://dx.doi.org/10.3390/nu12020410.

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Meal timing relative to sleep/wake schedules is relevant in the search for obesity risk factors. However, clock time does not accurately characterize the timing of food intake in the context of internal circadian timing. Therefore, we studied elapsed between dinner and the midpoint of sleep (TDM) as a practical approach to evaluate meal timing relative to internal timing, and its implications on obesity. To do so, adiposity, sleep, diet, physical activity, and TDM were measured in 133 women. The participants were grouped into four categories according to their sleep timing behavior (early-bed/

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Estevan, Ignacio, Natalia Coirolo, Bettina Tassino, and Ana Silva. "The Influence of Light and Physical Activity on the Timing and Duration of Sleep: Insights from a Natural Model of Dance Training in Shifts." Clocks & Sleep 5, no. 1 (January 31, 2023): 47–61. http://dx.doi.org/10.3390/clockssleep5010006.

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Environmental, social, and behavioral variables influence sleep timing and duration. Using wrist-worn accelerometers, we recorded 31 dancers (age = 22.6 ± 3.5) for 17 days and who trained either in the morning (n = 15) or in the late evening (n = 16). We estimated the dancers’ daily sleep pattern: onset, end, and duration. In addition, their minutes of moderate-to-vigorous physical activity (MVPA) and mean light illuminance were also calculated daily and for the morning-shift and late-evening-shift time windows. On training days, the shifts involved differences in sleep timing, alarm-driven wa

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Zhu, Liwei, Dexin Meng, Xiaohan Ma, Jing Guo, and Li Mu. "Sleep timing and hygiene practices of high bedtime procrastinators: a direct observational study." Family Practice 37, no. 6 (August 12, 2020): 779–84. http://dx.doi.org/10.1093/fampra/cmaa079.

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Abstract Background Bedtime procrastination (BP) has been proven to be an important indicator of sleep insufficiency from a psychological perspective. However, the effect of BP on sleep patterns related to sleep deficiency remains unknown. Objective This study aimed to investigate the characteristics of self-reported sleep timing and hygiene practices between high and low-moderate bedtime procrastinators. It also aimed to examine the relationship between these characteristics and high level of BP. Methods A total of 391 Chinese college students were recruited for this study. Participants compl

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Prayag, Abhishek, Mirjam Münch, Daniel Aeschbach, Sarah Chellappa, and Claude Gronfier. "Light Modulation of Human Clocks, Wake, and Sleep." Clocks & Sleep 1, no. 1 (March 13, 2019): 193–208. http://dx.doi.org/10.3390/clockssleep1010017.

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Light, through its non-imaging forming effects, plays a dominant role on a myriad of physiological functions, including the human sleep–wake cycle. The non-image forming effects of light heavily rely on specific properties such as intensity, duration, timing, pattern, and wavelengths. Here, we address how specific properties of light influence sleep and wakefulness in humans through acute effects, e.g., on alertness, and/or effects on the circadian timing system. Of critical relevance, we discuss how different characteristics of light exposure across the 24-h day can lead to changes in sleep–w

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Mathew, Gina, David Reichenberger, Orfeu Buxton, Lauren Hale, and Anne-Marie Chang. "140 Short and Long Sleep Duration, Poor Sleep Quality, and Later Sleep are Associated with Lower Odds of Adolescents Eating Breakfast." Sleep 44, Supplement_2 (May 1, 2021): A58. http://dx.doi.org/10.1093/sleep/zsab072.139.

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Abstract Introduction Sleep health is linked to dietary choices, and skipping breakfast is associated with risk of negative health outcomes in adolescents. However, there is a lack of research on whether dimensions of sleep at night predict adolescents eating breakfast the next day. We investigated within- and between-person associations of multiple aspects of sleep with adolescent breakfast consumption. Methods Data were collected from a subset of the age 15 wave of the Fragile Families and Child Wellbeing Study (n=590). Teens wore an actigraphy device and completed daily surveys for ~1 week

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Chang, Anne-Marie, Kathryn J. Reid, Ramadevi Gourineni, and Phyllis C. Zee. "Sleep Timing and Circadian Phase in Delayed Sleep Phase Syndrome." Journal of Biological Rhythms 24, no. 4 (July 22, 2009): 313–21. http://dx.doi.org/10.1177/0748730409339611.

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Reis, Cátia, Luísa K. Pilz, Lena Katharina Keller, Teresa Paiva, and Till Roenneberg. "Social timing influences sleep quality in patients with sleep disorders." Sleep Medicine 71 (July 2020): 8–17. http://dx.doi.org/10.1016/j.sleep.2020.02.019.

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Thomas, Matthew, Philip Kern, Dorothy Sears, and Julie Pendergast. "0097 Sleep and Eating Rhythms are Associated with Metabolic Risk in Postmenopausal Women." SLEEP 46, Supplement_1 (May 1, 2023): A43—A44. http://dx.doi.org/10.1093/sleep/zsad077.0097.

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Abstract Introduction Postmenopausal women are particularly vulnerable to metabolic dysfunction. Compelling evidence suggests that this is due to their lacking the protective effect of estrogens. We have shown that circulating estrogens regulate daily eating and sleep-activity rhythms in female mice and protect them from obesity and diabetes. However, few studies have investigated whether postmenopausal women have disrupted eating and sleep-activity rhythms that could contribute to their metabolic dysfunction. The purpose of this study was to investigate the relationship between eating rhythms

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Hehr, Aneesh, Hilary A. Marusak, Edward D. Huntley, and Christine A. Rabinak. "Effects of Duration and Midpoint of Sleep on Corticolimbic Circuitry in Youth." Chronic Stress 3 (January 2019): 247054701985633. http://dx.doi.org/10.1177/2470547019856332.

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Introduction Adequate sleep is essential for cognitive and emotion-related functioning, and 9 to 12 hr of sleep is recommended for children ages 6 to 12 years and 8 to 10 hr for children ages 13 to 18 years. However, national survey data indicate that older youth sleep for fewer hours and fall asleep later than younger youth. This shift in sleep duration and timing corresponds with a sharp increase in onset of emotion-related problems (e.g., anxiety, depression) during adolescence. Given that both sleep duration and timing have been linked to emotion-related outcomes, the present study tests t

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Verma, Sumedha, Donna Pinnington, Rachel Manber, and Bei Bei. "225 Sleep Timing and Chronotype in Mothers: Longitudinal Changes and Associations with Wellbeing from Pregnancy to 2 Years Postpartum." Sleep 44, Supplement_2 (May 1, 2021): A90. http://dx.doi.org/10.1093/sleep/zsab072.224.

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Abstract Introduction Women experience significant changes to sleep during perinatal periods. Existing research focuses on sleep duration and quality, but not sleep timing or chronotype (i.e., preferred timing for activity and sleep). This study investigated change trajectories of sleep timing and chronotype from late pregnancy to two years postpartum, and examined longitudinal associations between chronotype and insomnia, sleep-related daytime impairment, and mood. Methods Data were from a 2-arm randomized controlled trial testing behavioral sleep and diet interventions. A community sample of

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Dutil, Caroline, Irina Podinic, Christin M. Sadler, Bruno G. da Costa, Ian Janssen, Amanda Ross-White, Travis J. Saunders, Jennifer R. Tomasone, and Jean-Philippe Chaput. "Sleep timing and health indicators in children and adolescents: a systematic review." Health Promotion and Chronic Disease Prevention in Canada 42, no. 4 (April 2022): 150–69. http://dx.doi.org/10.24095/hpcdp.42.4.04.

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Introduction To continue to inform sleep health guidelines and the development of evidence-based healthy sleep interventions for children and adolescents, it is important to better understand the associations between sleep timing (bedtime, wake-up time, midpoint of sleep) and various health indicators. The objective of this systematic review was to examine the associations between sleep timing and 9 health indicators in apparently healthy children and adolescents 5 to 18 years old. Methods Studies published in the 10 years preceding January 2021 were identified from searches in four electronic

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Hisler, G., S. Pedersen, D. Clark, S. Rothenberger, and B. Hasler. "0216 Is There a Daily Rhythm in Alcohol Craving and Does It Vary by Circadian Timing?" Sleep 43, Supplement_1 (April 2020): A84. http://dx.doi.org/10.1093/sleep/zsaa056.214.

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Abstract Introduction People with later circadian timing tend to consume more alcohol, potentially due to altered rhythms in when and how much they crave alcohol throughout the day. However, whether circadian factors play a role in alcohol craving has received scant attention. Here, we investigated if the daily rhythm of alcohol craving varied by circadian timing in two independent studies of late adolescent and young adult drinkers. Methods In Study 1, 32 participants (18–22 years of age; 61% female; 69% White) completed momentary reports of alcohol craving five times a day for 14 days. Parti

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