scholarly journals Age and chronotype influenced sleep timing changes during the first wave of the COVID‐19 pandemic

2021 ◽  
Author(s):  
Ryan Bottary ◽  
Eric C. Fields ◽  
Elizabeth A. Kensinger ◽  
Tony J. Cunningham
Keyword(s):  
Sleep Timing

Effects of Quarantine Due to the COVID-19 on Sleep Duration and Quality in Algerians

2020 ◽  
Vol 60 (2) ◽  
pp. 182-193
Author(s):  
Kacem Abdelhadi ◽  
Houar Abdelatif ◽  
Zerf Mohamed ◽  
Bengoua Ali
Keyword(s):  
Statistical Analysis ◽  
Sleep Quality ◽  
Sleep Duration ◽  
Online Survey ◽  
Public Awareness ◽  
Italian Version ◽  
Sleep Timing ◽  
Algerian Population ◽  
Significant Change ◽  
The Impact

SummaryThis study tests the impact of COVID-19 on sleep of Algerian population before and during the COVID-19 quarantine by an estimated online survey, adapted from the PSQI Italian version. Including 1210 participants (age between 18-60 years old). The statistical analysis was carried out using SPSS version 22.0 software. Our results showed a significant change in sleeping quality during quarantine, the sleep timing markedly changed, we also noticed additional use of sleeping medications. Algerian scientists recommend to build public awareness and to provide necessary information regarding Algerian sleep quality, especially for Algerian adults.

scholarly journals Meal and Sleep Timing before and during the COVID-19 Pandemic: A Cross-Sectional Anonymous Survey Study from Sweden

2021 ◽  
Vol 3 (2) ◽  
pp. 251-258
Author(s):  
Christian Benedict ◽  
Luiz Eduardo Mateus Brandão ◽  
Ilona Merikanto ◽  
Markku Partinen ◽  
Bjørn Bjorvatn ◽  
...  
Keyword(s):  
Sample Size ◽  
Metabolic Health ◽  
Survey Study ◽  
Cross Sectional ◽  
Daily Routines ◽  
Sleep Timing ◽  
Social Jetlag ◽  
Meal Timing ◽  
At Home

The COVID-19 pandemic and related restrictions, such as stay-at-home-orders, have significantly altered daily routines and lifestyles. Given their importance for metabolic health, we herein compared sleep and meal timing parameters during vs. before the COVID-19 pandemic based on subjective recall, in an anonymous Swedish survey. Among 191 adults (mean age: 47 years; 77.5% females), we show that social jetlag, i.e., the mismatch in sleep midpoint between work and free days, was reduced by about 17 min during the pandemic compared with the pre-pandemic state (p < 0.001). Concomitantly, respondents’ sleep midpoint was shifted toward morning hours during workdays (p < 0.001). A later daily eating midpoint accompanied the shift in sleep timing (p = 0.001). This effect was mainly driven by a later scheduled first meal (p < 0.001). No difference in the timing of the day’s last meal was found (p = 0.814). Although our survey was limited in terms of sample size and by being cross-sectional, our results suggest that the delay in sleep timing due to the COVID-19 pandemic was accompanied by a corresponding shift in the timing of early but not late meals.

49 Longitudinal Change of Sleep in the Elderly and Its Associations with Health

2021 ◽  
Vol 50 (Supplement_1) ◽  
pp. i12-i42
Author(s):  
A Didikoglu ◽  
A Maharani ◽  
A Payton ◽  
M M Canal ◽  
N Pendleton
Keyword(s):  
Older Adults ◽  
Latent Class ◽  
Sport Participation ◽  
Sleep Time ◽  
Sleep Efficiency ◽  
Longitudinal Change ◽  
Sleep Timing ◽  
Increased Risk ◽  
Health And Mortality ◽  
Evening Class

Abstract Introduction In elderly populations, sleep quality deteriorates and sleep time shifts towards earlier times. These sleep characteristics have been associated with cardiovascular, metabolic and psychiatric disorders, cognitive decline and mortality. Our aims are to examine longitudinal changes of sleep in older adults and to investigate the relationship between sleep variations, general health and mortality. Methods The University of Manchester Longitudinal Study of Cognition in Normal Healthy Old Age cohort (6,375 participants, recruited in the North of England, between 1983 and 1993) was used. Mixed models were used to investigate individual sleep trajectories (5 waves in 30-year period). Sleep timing and efficiency trajectories were clustered using latent class analysis and analysed against daily habits, health and mortality. Results Older adults have decreased sleep efficiency (~20%) and early sleep time (~30 min) between 40 and 100 years of age. Those in the high sleep efficiency latent class had minimal decrease in their sleep efficiency as they aged. Belonging to the high sleep efficiency latent class was associated with having lower prevalence of hypertension, circulatory problems, arthritis, breathing problems and recurrent depression compared to the low efficiency latent class. Results showed a higher risk of hypertension and metabolic syndrome in the evening-type latent class compared to morning-type individuals. Evening class was associated with traits related to lower health such as reduced sport participation, increased risk of depression and psychoticism personality, late eating, increased smoking and alcohol usage. Survival analysis revealed that individuals in the evening class had 1.15-fold increased risk of all-cause mortality compared to those with morning preferences. Conclusion Ageing is associated with decreased sleep efficiency and early sleep timing. However, there are detectable subgroups of sleep traits that are related to prevalence of different diseases and longevity. Understating these subgroups may pave the way for new treatments for healthy sleeping habits in older population.

542 Objective Sleep Duration, Sleep Timing and Completion of In Vitro Fertilization Cycles; a Prospective Cohort Study

SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A214-A214
Author(s):  
Chawanont Pimolsri ◽  
Xiru Lyu ◽  
Cathy Goldstein ◽  
Chelsea Fortin ◽  
Sunni Mumford ◽  
...  
Keyword(s):  
Embryo Transfer ◽  
Sleep Duration ◽  
Medical Center ◽  
Working Women ◽  
Vitro Fertilization ◽  
Circadian Misalignment ◽  
Logistic Regression Models ◽  
Sleep Timing

Abstract Introduction Sleep duration and circadian misalignment have been linked to fertility and fecundability. However, sleep in women undergoing IVF has rarely been examined. This study investigated the role of sleep duration and timing with completion of an IVF cycle. Methods Prospective study of women undergoing IVF at a tertiary medical center between 2015 and 2017. Sleep was assessed by wrist-worn actigraphy 1–2 weeks prior to the initiation of their IVF cycle. Reproductive profile, IVF cycle details, demographic and health information were obtained from medical charts. Sleep duration, midpoint and bedtime were examined in relation to IVF cycle completion using logistic regression models, adjusted for age and anti-Müllerian hormone levels. A sub-analysis excluded women who worked non-day shifts to control for circadian misalignment. Results A total of 48 women were studied. Median age was 33y (range 25–42), with 29% of women older than 35 years. Ten women had an IVF cycle cancellation prior to embryo transfer. These women had shorter sleep duration, more nocturnal awakenings, lower sleep efficiency, and later sleep timing in comparison to those who completed their cycle. Twenty-minute increases in sleep duration were associated with lower odds of an uncompleted IVF cycle (OR = 0.88; 95% CI 0.78, 1.00). Women with later sleep midpoints and later bedtime had higher odds of an uncompleted cycle relative to those with earlier midpoints and earlier bedtime; OR=1.24; 95% CI 1.09, 1.40 and OR=1.33; 95% CI 1.17, 1.53 respectively, per 20-minute increments. These results were independent of age, levels of anti-Müllerian hormone, or sleep duration, and remained unchanged after exclusion of shift-working women. Conclusion This study demonstrated the influence of sleep duration and sleep timing on the odds of an uncompleted IVF cycle prior to embryo transfer. Sleep is a modifiable behavior that may contribute to IVF cycle success. Support (if any):

scholarly journals Adverse impact of polyphasic sleep patterns in humans: Report of the National Sleep Foundation sleep timing and variability consensus panel

Sleep Health ◽  
2021 ◽  
Author(s):  
Matthew D. Weaver ◽  
Tracey L. Sletten ◽  
Russell G. Foster ◽  
David Gozal ◽  
Elizabeth B. Klerman ◽  
...  
Keyword(s):  
Adverse Impact ◽  
Sleep Patterns ◽  
Consensus Panel ◽  
Sleep Timing

scholarly journals Later Meal and Sleep Timing Predicts Higher Percent Body Fat

Nutrients ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 73
Author(s):  
Elizabeth A. Thomas ◽  
Adnin Zaman ◽  
Marc-Andre Cornier ◽  
Victoria A. Catenacci ◽  
Emma J. Tussey ◽  
...  
Keyword(s):  
Body Fat ◽  
Overweight And Obesity ◽  
Percent Body Fat ◽  
P Value ◽  
Activity Monitors ◽  
Food Records ◽  
Sleep Timing ◽  
Meal Timing ◽  
Increased Risk ◽  
Unit Increase

Accumulating evidence suggests that later timing of energy intake (EI) is associated with increased risk of obesity. In this study, 83 individuals with overweight and obesity underwent assessment of a 7-day period of data collection, including measures of body weight and body composition (DXA) and 24-h measures of EI (photographic food records), sleep (actigraphy), and physical activity (PA, activity monitors) for 7 days. Relationships between body mass index (BMI) and percent body fat (DXA) with meal timing, sleep, and PA were examined. For every 1 h later start of eating, there was a 1.25 (95% CI: 0.60, 1.91) unit increase in percent body fat (False Discovery Rate (FDR) adjusted p value = 0.010). For every 1 h later midpoint of the eating window, there was a 1.35 (95% CI: 0.51, 2.19) unit increase in percent body fat (FDR p value = 0.029). For every 1 h increase in the end of the sleep period, there was a 1.64 (95% CI: 0.56, 2.72) unit increase in percent body fat (FDR p value = 0.044). Later meal and sleep timing were also associated with lower PA levels. In summary, later timing of EI and sleep are associated with higher body fat and lower levels of PA in people with overweight and obesity.

scholarly journals Sleep Timing Moderates the Concurrent Sleep Duration–Body Mass Index Association in Low-Income Preschool-Age Children

2014 ◽  
Vol 14 (2) ◽  
pp. 207-213 ◽  
Author(s):  
Alison L. Miller ◽  
Niko Kaciroti ◽  
Monique K. LeBourgeois ◽  
Yu Pu Chen ◽  
Julie Sturza ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Sleep Duration ◽  
Body Mass ◽  
Low Income ◽  
Preschool Age ◽  
Sleep Timing ◽  
Preschool Age Children

Social Jetlag and Emerging Adults’ Performance in a Behavioral Weight Loss Trial

2020 ◽  
pp. 216769682098243
Author(s):  
Autumn Lanoye ◽  
Jessica Gokee LaRose
Keyword(s):  
Weight Loss ◽  
Emerging Adults ◽  
Life Transitions ◽  
Behavioral Weight Loss ◽  
Fat Percentage ◽  
Sleep Timing ◽  
Social Jetlag ◽  
Suboptimal Weight Loss ◽  
Weight Loss Outcomes ◽  
Program Engagement

Social jetlag (SJ)—the shift in sleep timing between workdays and free days—is linked to deleterious cardiometabolic outcomes. SJ is greatest among emerging adults, who are already at high risk for overweight/obesity and experience suboptimal weight loss outcomes. Goals of this ancillary study were to assess SJ among emerging adults enrolled in a 6-month behavioral weight loss trial and examine the association between SJ and treatment outcomes. Bedtime/waketime were self-reported at baseline, and program engagement was monitored throughout the intervention. Weight, waist circumference, and body fat percentage were measured at baseline and post-treatment. Participants (N = 282) reported 1.5 hours of SJ on average, with 30.5% reaching the threshold for clinical significance. There were no significant associations between SJ and program engagement nor between SJ and change in adiposity. Life transitions and chaotic schedules are common during emerging adulthood; thus, further research is needed to capture nuanced patterns of sleep disruption.

scholarly journals Development of Late Circadian Preference: Sleep Timing From Childhood to Late Adolescence

2018 ◽  
Vol 194 ◽  
pp. 182-189.e1 ◽  
Author(s):  
Liisa Kuula ◽  
Anu-Katriina Pesonen ◽  
Ilona Merikanto ◽  
Michael Gradisar ◽  
Jari Lahti ◽  
...  
Keyword(s):  
Late Adolescence ◽  
Sleep Timing ◽  
Circadian Preference

The COVID-19 Lockdown and Changes in Routine-Oriented Lifestyle Behaviors and Symptoms of Depression, Anxiety, and Insomnia in South Africa

2021 ◽  
pp. 1-12
Author(s):  
Jonathan P. Davy ◽  
Karine Scheuermaier ◽  
Laura C. Roden ◽  
Candice J. Christie ◽  
Alison Bentley ◽  
...  
Keyword(s):  
Online Survey ◽  
Lifestyle Behaviors ◽  
Exercise Time ◽  
South Africans ◽  
Symptoms Of Depression ◽  
Sleep Timing ◽  
Sleep Debt ◽  
Males And Females ◽  
The Impact ◽  
Habitual Routines

Background: The authors assessed the impact of lockdown in response to the COVID-19 pandemic on routine-oriented lifestyle behaviors and symptoms of depression, anxiety, and insomnia in South Africans. Methods: In this observational study, 1048 adults (median age = 27 y; n = 767 females; n = 473 students) responded to an online survey on work, exercise, screen, alcohol, caffeine and sleep behaviors, depression, anxiety, and insomnia before and during lockdown. Comparisons were made between males and females, and students and nonstudents. Results: During lockdown, males reported larger reductions in higher intensity exercise and alcohol use than females, while depressive symptoms increased more among females, more of whom also reported poorer sleep quality. Students demonstrated larger delays in work and sleep timing, greater increases in sitting, screen, sleep duration, napping, depression and insomnia and larger decreases in work hours, exercise time, and sleep regularity compared with nonstudents. Conclusions: Students experienced more changes in their routine-oriented behaviors than nonstudents, coupled with larger increases in depression and insomnia. The dramatic change in their work and sleep timing suggests habitual routines that are at odds with their chronotype, with their sleep changes during lockdown likely reflecting “catch-up” sleep in response to accumulated sleep debt under usual routines.

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