One must process others’ facial affect proficiently to facilitate social functioning, and both social functioning and processing of facial affect can be impaired in sleep-deficient states. Based on mood-salience, decreased positive affect and increased negative affect experienced from sleep deficits or from depression might differentially modulate attentional responses to others’ positive and negative

Sleep disorders in patients with end-stage renal disease are common but have rarely been reported in previous studies. Therefore, we examined the prevalence of sleep disorders and the risk factors for declining sleep quality in patients undergoing peritoneal dialysis (PD). A multicenter prospective cohort study was conducted at five PD centers across different provinces in China. A total of 449 patients

The existing studies on the association between the decline in handgrip strength (HGS) and poor sleep are uncertain. This study aimed to evaluate the independent association between HGS and sleep quality assessed by global Pittsburgh Sleep Quality Index (PSQI) score in the middleaged and elderly population. Data were obtained from the Midlife in the United States (MIDUS) study, a longitudinal study

To investigate the prevalence of restless legs syndrome (RLS) in chronic obstructive pulmonary disease (COPD) patients. The symptoms and severity of RLS was evaluated by the International Restless Legs Syndrome Group Study (IRLSSG). Mann–Whitney U test, Chi-square test and Spearman correlation coefficient were used to analyze the data. Out of the 109 COPD patients, 18.3% were diagnosed with RLS. There

There is a relationship between extreme sleep duration and increased food intake. Some studies have reported that there was no change in the homeostatic aspects of energy balance, despite the increased nutrient intake, and in this case, the hedonic aspects may be effective. The purpose of this study was to examine the associations of hedonic hunger with sleep quality and duration among university students

To evaluate changes in the sleep patterns of patients undergoing general anesthesia for maxillofacial plastic surgery. A total of 200 consecutive craniofacial plastic surgery patients were enrolled in this study. Sixteen patients who did not stay in the craniofacial ward on the night before surgery were excluded, providing a final total of 184 patients. PSQI was used to evaluate sleep quality 1 month

Heart rate variability (HRV) considered as an indicator of the autonomic activity, shows differences between NREM and REM sleep. However, when evaluating during NREM sleep, some authors evaluate without considering the different stages, while others do it. There are discrepancies between values obtained from stages N2 and N3. Our objective was to evaluate whether differences exist between stages N2

Athletes are at risk of overtraining. Therefore, athletes need to build a strategy to get a better condition after training. If optimum recovery is achieved by good sleep, athletes can be engaged in other physical activities or increase the load of exercise in the upcoming days. Thus, we assumed that sleep quality is related to the performance of football athlete. To investigate if there is correlation

The purpose of this study is to assess the sleep quality, mental health status, and associated factors among medical workers during the coronavirus disease 2019 (COVID-19) pandemic. A cross-sectional study was conducted and medical workers in Ningbo, China were recruited. Sleep quality was evaluated by Pittsburgh Sleep Quality Index (PSQI). Mental health status was evaluated by Symptom Checklist 90

Obstructive sleep apnea (OSA) is a disease characterized by a brief period of cessation or marked decline in ventilation. The standard treatment is continuous positive airway pressure (CPAP). To determine the indication, full-night polysomnography (PSG) is required; however, it is a stressful examination. We verified the usefulness of pulse-oximetry at home as a predictor for CPAP indication before

Cataplexy is a sudden drop of antigravity-muscle tone triggered most often by positive emotional factors, which is one of the major symptoms of narcolepsy. Cataplexy has been treated pharmacologically, most often with tricyclic antidepressants. Even though tricyclic antidepressants are effective in reducing sleep paralysis and hypnagogic hallucinations, they even enhance daytime sleepiness, dizziness

We intend to examine whether behavioral and mental health-related determinants including stress level, daytime sleepiness, sleep disorders, smoking, drinking, physical activity, and vegetable intake were associated with severity of jet lag and symptoms of jet lag. We delivered a survey to All Nippon Airways HOLDINGS (ANA) customers in Japan and U.S. asking for their lifestyle information, subjective

Sleep-disordered breathing and sleep-related symptoms are frequent in patients with severe amyotrophic lateral sclerosis (ALS). We aimed to describe sleep quality, sleep structure, and the occurrence of sleep-disordered breathing in patients with early ALS, at the time of initial evaluation in a tertiary care center. Sleep-related symptoms were collected using questionnaires, the Pittsburgh Sleep quality

Midday napping, a culturally perceived health behavior, is common among adolescents in China. This study aimed to examine the factors associated with habitual midday napping behavior and explore sex differences in these factors. The sample comprised 1549 (62.5% males; mean age 16.29 ± 1.01 years) adolescents from a vocational high school that provided midday napping opportunities. Midday napping and

Purpose The aim of this study was to investigate the sleep quality of spouses of patients with restless legs syndrome (RLS). Methods Total 49 spouses of patients with RLS (Group 1) and 47 age- and sex-matched healthy volunteers (Group 2) were enrolled. Sleep quality was assessed by Pittsburgh Sleep Quality Index (PSQI). Insomnia Severity Index (ISI), Epworth Sleepiness Scale (ESS), Beck Depression

Weight loss is one of the first line treatments for people with obstructive sleep apnea (OSA); however, people with OSA may have difficulties losing weight. Few studies have investigated the factors underlying these challenges in people with OSA. The aim of this study was to compare dietary intake, eating behavior and physical activity data in people with OSA and without OSA. Seventy-four patients

The main objective of this study is to assess the prevalence of sleep disorders in treatment-naïve children and adolescents with ADHD compared with healthy controls matched for age and gender; and, at the same time, to determine whether stimulant medication (methylphenidate) affects sleep in the same group of children and adolescents with ADHD (naïve) after a 3-month treatment. A total of 120 children

Healthy lifestyles are important during adolescence due to their impact on health-related problems and life expectancy during adulthood. Despite the emphasis on the importance of healthy habits, the high prevalence of breakfast skipping, physical inactivity, and insufficient sleep is reported among adolescents. This study was aimed to investigate the relationship between sleep quality (SQ) and nutritional

Floppy eyelids are usually asymmetrical, and more severe on the side the patient sleeps on. This has been related to the mechanical basis of this entity’s pathophysiology. Patients who exhibit floppy eyelid syndrome (FES) tend to suffer from obstructive sleep apnea and other sleeping disorder such as snoring; therefore, their spouses are likely to be found sleeping facing away from them. In this study

The aim was to examine the interrelationship between sleep quality of 1-month infants and mothers, mothers’ corresponding activities to infant’s night sleep, and mother’s mental health. A cross-sectional survey with self-reported questionnaire was conducted among 437 healthy mother–infant pairs at 1-month postpartum delivered at a maternal hospital in Tokyo. The main measurements were the presence

Perceived stress is strongly associated with sleep problems. Despite the evidence linking these variables, research examining the reciprocal relationships between them using non-recursive models, which include feedback loop between endogenous variables, is lacking. The main objective was to analyse if there is a bidirectional relation between perceived stress and insomnia symptoms with a model using

Inflammation activation is associated with adverse outcomes in patients with heart failure (HF). Sleep-disordered breathing (SDB) observed in 50% of patients with HF worsens the clinical outcome of HF, possibly through the exacerbation of inflammation. However, data on inflammation activation related to SDB are limited in patients with HF. We investigated the relationship between SDB severity and serum

Research and clinical practice have demonstrated that patients with insomnia are a heterogeneous population. As such, it is important to understand and differentiate the potential sub-groups among insomnia patients as well as individuals at risk for insomnia. Questionnaires completed by 291 students of both sexes and at risk for insomnia (FIRST scale score ≥ 22) were analyzed (age range 17–24 years)

The purpose of the study is to evaluate sleep disorders in dysmenorrhea patients and investigate the relationship between sleep disorders and anxiety and depression levels in these patients. This cross-sectional study included 55 primary dysmenorrhea patients who were admitted to the emergency department as well as 47 healthy control subjects. All participants were assessed using Beck Depression Inventory

Sleep disorders pose a serious threat to human, which may cause variety diseases. Recent reviews on the epidemiology examine that gastroesophageal reflux disease (GERD) has different levels of causality about asthma, chronic dry cough, sleep apnea, non-cardiac chest pain, chest tightness, and chronic bronchitis. The relationship between sleep disorders and GERD has been explained in various ways, but

Empathy is a crucial facet in providing healthcare to patients. Healthcare requires its workers to work extended shifts and provide 24/7 coverage, which can lead to increased sleepiness and changes in empathy. This study assessed how cognitive and affective empathy were affected by time of day, working a 12-h shift, and perceived sleepiness in emergency medical technicians. Results demonstrated that

Purpose To examine the psychometric properties of the Sleep Condition Indicator (SCI) using different psychometric approaches [including classical test theory, Rasch models, and receiver operating characteristics (ROC) curve] among patients with advanced cancer. Methods Through convenience sampling, patients with cancer at stage III or IV (n = 859; 511 males; mean ± SD age = 67.4 ± 7.5 years) were

A blackout on the island of Hokkaido occurred following a massive earthquake on September 6, 2018. This study analyzed the sleep pattern data of junior high school students on the night of the blackout in comparison to a normal night. Data were collected from 52 junior high school students from a school away from the earthquake’s epicenter but within the blackout area. Although the students normally

Sleep in children is essential for growth, emotional health and cognitive function. Although it has been described that poor sleep can seriously affect learning capacity, this relationship remains unclear. The purposes were to: (1) describe sleep patterns and sleep problems in schoolchildren; and (2) analyze the relationship between sleep quality and quantity and academic achievement. This study included

During long-term follow-up of the patients with obstructive sleep apnea syndrome (OSAS) under the positive airway pressure (PAP) therapy, it waits to be explored whether or when routine retitrations are indicated. We prospectively followed up 133 patients for 10 years to define which demographical or polysomnographic factors should be taken into account to determine the need for retitration. Patients

Although upper airway stimulation (UAS) is becoming an established therapy for obstructive sleep apnea (OSA) in Western countries, it is not available in Japan, where invasive procedures tend to be avoided, especially by women. We, therefore, performed surveillance concerning the preference for UAS among Japanese OSA patients receiving CPAP treatment. Preference for UAS and the reasons were obtained

Since sleep is under circadian and homeostatic regulation, the status of regulatory mechanisms can be known from daily activity patterns, including both sleep and wake states. Therefore, the relationship between their quantitative characterization and associated subjective QOL can be expected to provide practical knowledge for maintaining/improving QOL. An index quantifying the consistency of daily

The aim of this study was to evaluate the effect on patient anxiety and first-night effect (FNE) of a video modelling application, which has an important place in behavioural information practices. A total of 232 adolescent and adult patients with suspected obstructive sleep apnea were randomly separated into groups within two age ranges using the sealed envelope method. Group 1 (14–18 years, n: 40)

Sleep disturbances have multiple negative effects on psychological, social, and occupational aspects. The effects of sleep disturbances on the risk of taking sick leave was investigated in a meta-analysis. According to the PRISMA protocol, PubMed, Google Scholar, Scopus, and ResearchGate sites were searched by the researchers until October 2018. Studies with prospective design and also the articles

Insomnia disorder has known striking developments over the last few years. Partly due to advances in neuroimaging techniques and brain sciences, our understanding of insomnia disorder has become more fine-tuned. Besides, developments within psychological and psychiatric fields have contributed to improve conceptualization, assessment, and treatment of insomnia. In this paper, we present a list of promising

Investigation of sleep spindles’ oscillations is increasingly considered as a major avenue of inquiry in analyzing the microarchitecture of sleep. Previous studies highlight a strong mutual interaction between sleep and stress. In the present study, we investigated the effects of multiple stresses, provoked by animal immobilization in the narrow Plexiglas boxes with additional stress by placing some

Despite plenty of restless legs syndrome (RLS) studies conducted with hemodialysis patients, it has been scarcely studied in patients with predialysis chronic kidney disease (CKD). In the present study, we aimed to investigate the frequency of RLS in patients with nondialysis chronic kidney disease and explore the relationship between RLS with sleep quality, depression, pulse wave velocity (PWV), and

Poor sleep and excessive weight gain of pregnant women are associated with maternal outcomes. However, it’s unknown regarding their effects of each other in pregnant women. This cohort study aimed to identify the trajectories of sleep quality and their associations with excessive gestational weight gain during pregnancy. Data of 403 pregnant women were collected at three visiting points: early pregnancy

The purpose of this study was to investigate the association between sleep disturbances and dry eye syndrome (DES). 201 patients with DES were included in this study. Tear fluid break-up time (TBUT) and Schirmer I tests were performed. Patients with DES filled out Ocular Surface Disease Index (OSDI) questionnaire. The respondents completed the Pittsburgh Sleep Quality Index (PSQI), the Insomnia Severity

The aim of this study was to examine the association between sleep duration and frailty in community-dwelling Turkish older adults and to determine whether this association varies depending on gender. A cross-sectional study was conducted from August 2013 to December 2013 with 905 individuals, representative of the aged population ≥ 60 years in community-dwelling elderly. Self-reported sleep duration

To examine whether insomnia disorder is associated with cognitive impairment in young and middle-aged Chinese adults. A case–control sample of 98 adults aged from 18 to 65 years old from Guangdong province underwent clinical history, physical examination, and cognitive assessments. We examined the trail-making test (TMT), basic symbol coding test (BASC), continuous performance task (CPT), category

Sleep-disordered breating (SDB), including obstructive sleep apnea–hypopnea syndrome (OSAS) is a clinical syndrome mainly characterized by recurrent upper airway collapse during sleep, which leads to snoring, respiratory disturbance, sleep interruption, hypoxemia, and subsequent chronic diseases. The options for intervention of OSAS include continuous positive airway pressure (CPAP), sleep surgery

The aim of this document was to provide a commentary on the AASM Manual for Scoring of Sleep and Associated Events in an Australasian context. A panel of Australasian sleep professionals developed the commentary. Each member was tasked with reviewing an assigned section and reporting back with potential AASM Manual clarifications and alterations. These suggestions were evaluated by the panel and ultimately

Adenosine signaling has profound effects on sleep, many of which depend on the adenosine A2A receptor (A2AR). Here, we compared the sleep architecture of adult male A2AR knockout (A2AR-KO) mice and wild-type littermates. While total time spent in each stage of wakefulness, non-rapid eye movement sleep (NREMS), and rapid eye movement sleep (REMS) was normal in A2AR-KO mice, the episode durations of

IntroductionThe purpose of this study was to assess the validity and reliability of the Persian version of the Cleveland Adolescent Sleepiness Questionnaire (CASQ) in Iranian adolescents. MethodsThe CASQ consists of 16 items measuring extreme sleepiness during the day in adolescents aged 11–17 years old. The questionnaire includes two dimensions: Sleepiness Statements and Alertness Statements. This

The Pittsburgh Sleep Quality Index (PSQI), a self-administrated questionnaire, is a frequently used instrument to assess sleep quality in clinical and non-clinical populations. The aim of the study was to evaluate the psychometric properties of the Arabic PSQI among patients diagnosed with cancer. A cross-sectional and descriptive correlational design was used with 369 patients with cancer completing

Sleep duration and quality are associated with many diseases. Evaluating the relationship between nutrient intake and sleep quality is important, because dietary factors play an important role in sleep quality. Short sleep duration which is associated with both metabolic disorders, obesity and, an irregular sleep pattern are thought to be related to an unhealthy diet. The recent literature has been

This review will trace the elements of neurostimulation for obstructive sleep apnea and details on its implementation, efficacy and safety, immediate clinical outcomes, and future prospects. The literature on upper airway neurostimulation was surveyed from July 2013 to July 2019, with a focus on the components of devices, evidence for clinical utility, and adverse events. Current technology is focused

Sleep disturbances, such as short sleep duration and insomnia, are core features of depression. However, it is unclear if sleep duration and insomnia have an interactive effect on depression severity or individual symptoms. Data were drawn from a community sample (N = 1007) containing responses on the Insomnia Severity Index, Patient Health Questionnaire–9 (PHQ-9), and average sleep duration. Regression

We investigated the relationship between sleep disturbances and 123I-meta-iodobenzylguanidine (MIBG)-uptake during myocardial scintigraphy in patients with Parkinson’s disease (PD). We studied consecutive PD patients who underwent MIBG scintigraphy at our institution. Collected data included Hoehn and Yahr (HY) stage, the heart/mediastinum (H/M) ratio of MIBG scintigraphy, Epworth Sleepiness Scale

This study examined the relationship between dissatisfaction with cutaneous body image and facial appearance with symptoms of insomnia whilst incorporating the mediating role of anxiety and/or depression after accounting for co-morbid sleep disorder symptoms. Participants (n = 241) completed online measures assessing insomnia symptoms, anxiety and depression symptoms, and satisfaction with cutaneous

The purpose of this study was to explore the impact that portable electronic device use in bed after lights out has on sleep/wake behaviour within an adult population. Specifically, this study aimed to (1) identify patterns of use of electronic devices in bed; (2) examine the relationship between electronic device use in bed and sleep/wake behaviour; and (3) examine the impact of demographic variables

A 39-year-old married woman was referred to a psychiatry outpatient clinic for treatment of major depressive disorder (MDD). The dose of zolpidem she had been taking had increased to more than 500 mg/day and, therefore, she was hospitalized with the aim of zolpidem detoxification. On admission, her serum zolpidem level was 1550 ng/mL, and this dropped to less than one (ng/mL) within 50 h. However,

Scientific research on the benefits of the Mahjong card game and social activity for sleep remains limited among older adults in China, although these two leisure behaviors are common among Chinese older adults. This study aims to examine this topic of interest in a single research effort. Applying panel data from the Chinese Longitudinal Healthy Longevity Survey from 4718 participants, a nationally

Bright light (BL) therapy is clinically utilized for treatment of sleep–wake disorders through the manipulation of circadian oscillation. It is also extended to depressive disorders including seasonal affective disorder through emotional regulation. Recently, it has been suggested that BL facilitates memory encoding and consolidation via another psychophysiological mechanism of perceptual information

There is a paucity of studies investigating how sexual activity is perceived to influence sleep, despite conceptions about significant gender differences regarding this issue. In all, 4000 persons, aged between 18 and 55 years, were randomly drawn from the Norwegian Population Registry and invited to participate in a postal survey. The respondents were asked how sexual activity with another person

Assessment of sleep is an important determinant of health. Moreover, sleep assessment is quite difficult in elderly people; getting consent for participation in the study, spending more time due to cognitive and communicative disruptions, having difficulties in accessing to individuals, and higher withdrawal rate of elderly people than adults occur as additional difficulties. The objective of the study

To determine the relationship of specific macro- and micro-nutrients and food groups with sleep duration and sleep quality in adults. This cross-sectional descriptive study was conducted on 2446 adults aged between 20 and 64 years in Turkey. The participants’ socio-demographic characteristics, anthropometric measurements, and dietary intake (24-h recall) were taken. The Pittsburgh Sleep Quality Index

The editors have retracted in the original article because they remain unconvinced by the provenance, ownership and reliability of the data that the authors claim to have collected using the application ‘myCircadianClock’ within this study