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short sleep duration

Julio Fernandez-Mendoza
PURPOSE OF REVIEW: It was first proposed in the late 1990s that objective markers of sleep disturbance could serve as an index of the biological severity of insomnia. In 2013, a heuristic model of two insomnia phenotypes based on objective sleep duration was proposed. Herein, we review the studies conducted in the past 3 years on the insomnia with short sleep duration phenotype and its implications for a clinical research agenda. RECENT FINDINGS: Studies have shown that insomnia with objective short sleep duration is associated with physiologic hyperarousal and cardiometabolic and neurocognitive morbidity, whereas insomnia with normal sleep duration is not...
October 18, 2016: Current Opinion in Psychiatry
Carmela Alcántara, Luciana Andrea Giorgio Cosenzo, Weijia Fan, David Matthew Doyle, Jonathan A Shaffer
Although Blacks sleep between 37 and 75min less per night than non-Hispanic Whites, research into what drives racial differences in sleep duration is limited. We examined the association of anxiety sensitivity, a cognitive vulnerability, and race (Blacks vs. White) with short sleep duration (<7h of sleep/night), and whether anxiety sensitivity mediated race differences in sleep duration in a nationally representative sample of adults with cardiovascular disease. Overall, 1289 adults (115 Black, 1174 White) with a self-reported physician/health professional diagnosis of ≥1 myocardial infarction completed an online survey...
October 5, 2016: Journal of Anxiety Disorders
Brice Faraut, Thomas Andrillon, Marie-Françoise Vecchierini, Damien Leger
Sleep specialists have proposed measures to counteract the negative short- and long-term consequences of sleep debt, and some have suggested the nap as a potential and powerful "public health tool". Here, we address this countermeasure aspect of napping viewed as an action against sleep deprivation rather than an action associated with poor health. We review the physiological functions that have been associated positively with napping in both public health and clinical settings (sleep-related accidents, work and school, and cardiovascular risk) and in laboratory-based studies with potential public health issues (cognitive performance, stress, immune function and pain sensitivity)...
September 13, 2016: Sleep Medicine Reviews
Wenjie Huang, Mahalakshmi Rangabashyam, Ying Hao, Jiaying Liu, Song Tar Toh
INTRODUCTION: This study aimed to determine the impact of obstructive sleep apnoea (OSA) on quality of life (QOL) and evaluate the utility of polysomnographic parameters in reflecting QOL. MATERIALS AND METHODS: Eighty-eight patients who underwent polysomnography (PSG) between December 2010 and November 2012 consecutively were recruited and they completed the 36-Item Short-Form Health Survey (SF-36) and Epworth Sleepiness Scale (ESS) questionnaires. Based on the apnoea-hypopnoea index (AHI), patients were classified as primary snorers (AHI <5), suffering from mild (5 ≤15), moderate (15 ≤30) or severe OSA (≥30)...
September 2016: Annals of the Academy of Medicine, Singapore
Dean W Beebe, Julie Field, Megan M Milller, Lauren E Miller, Elizabeth LeBlond
STUDY OBJECTIVES: Investigate whether a realistic "dose" of shortened sleep, relative to a well-rested state, causes a decline in adolescents' learning and an increase in inattentive and sleepy behaviors in a simulated classroom setting. METHODS: Eighty-seven healthy 14.0-16.9 year-olds underwent a 3-week sleep manipulation protocol, including two 5-night sleep manipulation conditions presented in a randomly counterbalanced within-subjects cross-over design. Wake time was held constant...
October 10, 2016: Sleep
Adam C Raikes, Sydney Y Schaefer
STUDY OBJECTIVES: A number of subjective and objective studies provide compelling evidence of chronic postconcussion changes in sleep, yet very little is known about the acute effects of concussion on sleep quality and quantity. Therefore, the purpose of this prospective pilot study was to use actigraphy to examine the changes in sleep quality and quantity acutely following concussion at home rather than in a hospital or sleep laboratory. METHODS: Seventeen young adults (7 with acute concussion, 10 controls) were recruited for this study...
October 10, 2016: Sleep
Osamu Itani, Maki Jike, Norio Watanabe, Yoshitaka Kaneita
OBJECTIVE: The dose-response of short sleep duration in mortality has been studied, in addition to the incidences of notable health complications and diseases such as diabetes mellitus, hypertension, cardiovascular diseases, stroke, coronary heart diseases, obesity, depression, and dyslipidemia. METHODS: We collected data from prospective cohort studies with follow-ups of one year or more on associations between short sleep duration and the outcomes. For the independent variable, we divided participants at baseline into short sleepers and normal sleepers...
August 26, 2016: Sleep Medicine
Aimee Chan, SiHan Li, Ahn R Lee, Joseph Leung, Alissa Yip, Jaimie Bird, Kyle E Godden, Dolores Martinez-Gonzalez, Niels C Rattenborg, Evan Balaban, Maria Pompeiano
Coordinated activity in different sets of widely-projecting neurochemical systems characterize waking (W) and sleep (S). How and when this coordination is achieved during development is not known. We used embryos and newborns of a precocial bird species (chickens) to assess developmental activation in different neurochemical systems using cFos expression, which has been extensively employed to examine cellular activation during S and W in adult mammals. Similarly to adult mammals, newborn awake chicks showed significantly higher cFos expression in W-active hypocretin/orexin (H/O), serotonergic Dorsal Raphe, noradrenergic Locus Coeruleus and cholinergic Laterodorsal and Pedunculopontine Tegmental (Ch-LDT/PT) neurons when compared to sleeping chicks...
October 4, 2016: Neuroscience
Yoko Komada, Raoul Breugelmans, Christopher L Drake, Shun Nakajima, Norihisa Tamura, Hideki Tanaka, Shigeru Inoue, Yuichi Inoue
The aim of this study was to elucidate the level of daytime sleepiness in Japanese school-aged children and adolescents, and to examine associated factors including sleep loss and social jetlag using the Japanese version of the Pediatric Daytime Sleepiness Scale (PDSS-J). After the linguistic validation of the PDSS-J with a multi-step translation methodology, consisting of forward translation, back translation, expert review and cognitive debriefing interviews, we conducted a psychometric validation for 492 students aged 11-16 years (46...
August 12, 2016: Chronobiology International
Gyambo Sithey, Li Ming Wen, Patrick Kelly, Mu Li
STUDY OBJECTIVES: Short and long sleep durations have been found to be associated with chronic conditions like diabetes mellitus, hypertension and cardiovascular disease. However, most studies were conducted in developed countries and the results were inconsistent. The aim of this study is to investigate the association between sleep duration and self-reported health status in a developing country setting. METHODS: We conducted secondary data analysis of the 2010 Gross National Happiness study of Bhutan, which was a nationwide cross sectional study with representative samples from rural and urban areas...
September 29, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
Subhajit Chakravorty, Ninad S Chaudhary, Kirk J Brower
Sleep-related complaints are widely prevalent in those with alcohol dependence (AD). AD is associated not only with insomnia, but also with multiple sleep-related disorders as a growing body of literature has demonstrated. This article will review the various aspects of insomnia associated with AD. In addition, the association of AD with other sleep-related disorders will be briefly reviewed. The association of AD with insomnia is bidirectional in nature. The etiopathogenesis of insomnia has demonstrated multiple associations and is an active focus of research...
October 5, 2016: Alcoholism, Clinical and Experimental Research
Judith E Carroll, Michael R Irwin, Morgan Levine, Teresa E Seeman, Devin Absher, Themistocles Assimes, Steve Horvath
BACKGROUND: Insomnia symptoms are associated with vulnerability to age-related morbidity and mortality. Cross-sectional data suggest that accelerated biological aging may be a mechanism through which sleep influences risk. A novel method for determining age acceleration using epigenetic methylation to DNA has demonstrated predictive utility as an epigenetic clock and prognostic of age-related morbidity and mortality. METHODS: We examined the association of epigenetic age and immune cell aging with sleep in the Women's Health Initiative study (N = 2078; mean 64...
July 26, 2016: Biological Psychiatry
Kui Peng, Lin Lin, Zhengyi Wang, Lin Ding, Ya Huang, Po Wang, Yu Xu, Jieli Lu, Min Xu, Yufang Bi, Weiqing Wang, Yuhong Chen, Guang Ning
BACKGROUND: Epidemiologic studies have reported conflicting results on the relationship between short sleep duration and nonalcoholic fatty liver disease (NAFLD). Previous research investigating the impact of daytime nap on NAFLD was not available. Herein, we examined the associations between nightly sleep duration, daytime nap with NAFLD in a middle-aged and elderly Chinese population. METHODS: This cross-sectional community-based population study included 8559 individuals aged 40 years or older...
October 4, 2016: Journal of Diabetes
Aileen Wk Chan, Doris Sf Yu, K C Choi, Diana Tf Lee, Janet Wh Sit, Helen Yl Chan
PURPOSE: Age-related cognitivee decline is a growing public health concern worldwide. More than a quarter of adults with cognitive impairment experience sleep disturbance. The objective of this pilot study was to evaluate the preliminary effects of tai chi qigong (TCQ) on improving the night-time sleep quality of older adults with cognitive impairment. PARTICIPANTS: Older adults with cognitive impairment who complain of sleep disturbance. METHODS: A randomized controlled trial with two groups...
2016: Clinical Interventions in Aging
Kazuko Kato, Seiko Miyata, Motoo Ando, Hiroki Matsuoka, Fumihiko Yasuma, Kunihiro Iwamoto, Naoko Kawano, Masahiro Banno, Norio Ozaki, Akiko Noda
AIMS: Short sleep duration is a risk factor for cardiovascular diseases. Cerebral blood flow and its regulation are affected by pathological conditions commonly observed in the elderly population, such as dementia, atherosclerosis, diabetes mellitus, stroke and hypertension. The purpose of this study was to examine the influence of sleep duration on cortical oxygenated hemoglobin (OxyHb) using near-infrared spectroscopy (NIRS). METHODS: Seventy-three individuals (age, 70...
October 3, 2016: Psychiatry and Clinical Neurosciences
Guido Simonelli, Katherine A Dudley, Jia Weng, Linda C Gallo, Krista Perreira, Neomi A Shah, Carmela Alcantara, Phyllis C Zee, Alberto R Ramos, Maria M Llabre, Daniela Sotres-Alvarez, Rui Wang, Sanjay R Patel
STUDY OBJECTIVES: To evaluate whether an adverse neighborhood environment has higher prevalence of poor sleep in a US Hispanic/Latino population. METHODS: A cross-sectional analysis was performed in 2156 US Hispanic/Latino participants aged 18-64 years from the Sueño ancillary study of the Hispanic Community Health Study/Study of Latinos (HCHS/SOL). Participants completed surveys of neighborhood environment including perceived safety, violence and noise, the Insomnia Severity Index (ISI), and 7 days of wrist actigraphy...
September 26, 2016: Sleep
Martica H Hall, Suresh Mulukutla, Christopher E Kline, Laura B Samuelsson, Briana J Taylor, Julian F Thayer, Robert T Krafty, Ellen Frank, David J Kupfer
STUDY OBJECTIVES: The mechanisms linking short sleep duration to cardiovascular disease are poorly understood. Emerging evidence suggests that endothelial dysregulation may lie along the causal pathway linking sleep duration to cardiovascular risk, although current evidence in humans is based on cross-sectional studies. Our objective was to evaluate the prospective association between objectively-assessed sleep duration and clinical indices of endothelial health. METHODS: A total of 141 medically healthy adults underwent an overnight laboratory sleep study when they were between the ages of 21 and 60 years...
September 26, 2016: Sleep
Jonathan Cedernaes, Flaminia Fanelli, Alessia Fazzini, Uberto Pagotto, Jan-Erik Broman, Heike Vogel, Suzanne L Dickson, Helgi B Schiöth, Christian Benedict
Following binding to cannabinoid receptors, endocannabinoids regulate a variety of central nervous system processes including appetite and mood. Recent evidence suggests that the systemic release of these lipid metabolites can be altered by acute exercise and that their levels also vary across the 24-h sleep-wake cycle. The present study utilized a within-subject design (involving 16 normal-weight men) to determine whether daytime circulating endocannabinoid concentrations differ following three nights of partial sleep deprivation (4...
September 22, 2016: Psychoneuroendocrinology
Martine Hébert, Rachel Langevin, Elisa Guidi, Anne Claude Bernard-Bonnin, Claire Allard-Dansereau
OBJECTIVE: Child sexual abuse (CSA) is associated with a host of deleterious impacts, yet little is known on the short-term correlates in children. This study aimed to investigate the association between dissociation and sleep problems in a sample of preschool-aged sexual abuse victims, while controlling for potentially confounding variables, including gender, age, polytrauma, CSA characteristics and parental distress. METHOD: The sample consisted of 179 children (ages 3-6 years) and their non-offending parent...
September 28, 2016: Journal of Trauma & Dissociation
Wei-Ju Lee, Li-Ning Peng, Chih-Kuang Liang, Shu-Ti Chiou, Liang-Kung Chen
AIM: There is a complex interrelationship between long sleep duration, frailty, chronic inflammation and mortality among the community-dwelling middle-aged and elderly population, which remains unclear and deserves to be investigated. The current study intended to explore these associations by using a prospective population-based cohort study. METHODS: A total of 937 community-dwelling middle-aged and elderly people were enrolled. Sleep patterns of the study participants were categorized as short (<6 h), average or long (≥8 h)...
September 29, 2016: Geriatrics & Gerontology International
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