Bedtime Variability and Metabolic Health in Midlife Women: The SWAN Sleep Study

Taylor, Briana J.; Matthews, Karen A.; Hasler, Brant P.; Roecklein, Kathryn A.; Kline, Christopher E.; Buysse, Daniel J.; Kravitz, Howard M.; Tiani, Alaina; Harlow, Sioḃán D.; Hall, Martica

doi:10.5665/sleep.5464

Cited by 80 publications

(47 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…42,43 Moreover, irregular sleep-wake patterns including variability in nocturnal sleep duration and daytime napping have also been associated with obesity independent of mean sleep duration in both men and women. 44,45 Recently, studies have also demonstrated that overweight and obesity are more common in shi-workers than day workers possibly as an outcome of physiological maladaptation to chronically sleeping and eating at abnormal circadian times. 46,47 In the similar manner, our study also demonstrates signicant association of inadequate sleep, irregular sleep-wake timings, and shi-work with obesity.…”

Section: Discussionmentioning

confidence: 99%

MC4R variant rs17782313 and manifestation of obese phenotype in Pakistani females

2018

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

MC4R variant rs17782313 and manifestation of obese phenotype in Pakistani females

2018

View full text Add to dashboard Cite

show abstract

“…Frequent shifts in sleep timing were associated with metabolic problems and increased prevalence of depressive symptoms [18,19]. However, the literature on effects of bedtime on sperm health is scant.…”

Section: Discussionmentioning

confidence: 99%

Sleep Deprivation and Late Bedtime Impair Sperm Health Through Increasing Antisperm Antibody Production: A Prospective Study of 981 Healthy Men

Liu

Liu²,

Chen

et al. 2017

Med Sci Monit

View full text Add to dashboard Cite

BackgroundThe aim of this study was to investigate the effects of sleep duration and bedtime on sperm health, and the possible mechanism involved.Material/MethodsWe randomly divided 981 healthy Chinese men into groups according to research-set bedtimes (A=8–10 PM, B=after 10 PM, and C=after midnight) and sleep durations: group 1=<6.0 h (short), group 2=7.0–8.0 h (average), and group 3=>9.0 h (long). Sperm morphology, count, survival, and motility were examined according to sleep patterns. Antisperm antibody (ASA) production in semen was determined.ResultsSperm counts and their survival rates were lower in the short sleepers as compared to others within each group (all P<0.01). The lower counts and survival rates were observed in different bedtimes, with significant differences found between measurements of C1 vs. A1 and C2 vs. A2 or B2 (all P<0.05 or 0.01). Semen motility was lower in the short sleepers as compared to the average and long sleepers (all P<0.01). There were differences in the bedtime-related results between measurements of C1 vs. A1 or B1 (P<0.05 or 0.01). Additionally, the population proportion for the ASA-positive participates and incidence of the ASA-expressed population obviously increased in the short sleepers as compared to others within each group (all P<0.05).ConclusionsShort and long sleep durations and late bedtime were associated with impaired sperm health in the study cohort, partly through increasing ASA production in the semen.

show abstract

“…Several related, yet distinct dimensions of sleep, such as restricted sleep (Buxton et al, 2010; Spiegel et al, 1999), short sleep (Cappuccio et al, 2010; Malone et al, 2016), late chronotype (Merikanto et al, 2013) and irregular sleep times (Taylor et al, 2016; Wong et al, 2015) have been associated with cardio-metabolic diseases. Hypertension is more prevalent in persons reporting short sleep (≤6 h), independent of socioeconomic status (Stranges et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Differences in morning–evening type and sleep duration between Black and White adults: Results from a propensity-matched UK Biobank sample

Malone

Patterson

Lozano

et al. 2017

Chronobiology International

View full text Add to dashboard Cite

Biological evidence suggests that ethno-racial differences in morning–evening type are possible, whereby Blacks may be more likely to be morning type compared to Whites. However, population-level evidence of ethno-racial difference in morning–evening type is limited. In an earlier study, we reported that morning type was more prevalent in Blacks compared to Whites in the United Kingdom (UK) Biobank cohort (N = 439 933). This study aimed to determine if these ethno-racial differences persisted after accounting for an even broader range of social, environmental and individual characteristics and employing an analytic approach that simulates randomization in observational data, propensity score modeling. Data from UK Biobank participants whose self-identified race/ethnicity was Black/Black British or White; who did not report daytime napping, shift work or night shift work; who provided full mental health information; and who were identified using propensity score matching were used (N = 2044). Each sample was strongly matched across all social, environmental and individual characteristics as indicated by absolute standardized mean differences <0.09 for all variables. The prevalence of reporting nocturnal short, adequate and long sleep as well as morning, intermediate and evening type among Blacks (n = 1022) was compared with a matched sample of Whites (n = 1022) using multinomial logistic regression models. Blacks had a 62% greater odds of being morning type [odds ratio (OR) = 1.620, 95% confidence interval (CI): 1.336–1.964, p < .0001] and a more than threefold greater odds of reporting nocturnal short sleep (OR = 3.453, 95% CI: 2.846–4.190, p < .0001) than Whites. These data indicate that the greater prevalence of morning type and short nocturnal sleep in Blacks compared to Whites is not fully explained by a wide range of social and environmental factors. If sleep is an upstream determinant of health, these data suggest that ethno-racially targeted public health sleep intervention strategies are needed.

show abstract

Bedtime Variability and Metabolic Health in Midlife Women: The SWAN Sleep Study

Abstract: A commentary on this article appears in this issue on page 269.

Cited by 80 publications

References 50 publications

MC4R variant rs17782313 and manifestation of obese phenotype in Pakistani females

MC4R variant rs17782313 and manifestation of obese phenotype in Pakistani females

Sleep Deprivation and Late Bedtime Impair Sperm Health Through Increasing Antisperm Antibody Production: A Prospective Study of 981 Healthy Men

Differences in morning–evening type and sleep duration between Black and White adults: Results from a propensity-matched UK Biobank sample

Contact Info

Product

Resources

About