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Keywords = The Bad Sleep Well

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17 pages, 320 KB  
Article
The Sovereign and the Machine: Hamlet’s Corporate Death
by Zhenyu Xu
Literature 2026, 6(3), 25; https://doi.org/10.3390/literature6030025 - 7 Sep 2026
Abstract
This article rereads Akira Kurosawa’s 1960 film The Bad Sleep Well as a modern Hamlet that relocates Shakespeare’s crisis of action from dynastic succession to postwar bureaucratic and corporate modernity. It shifts attention away from plot fidelity and toward how Hamletian functions—staged revelation, [...] Read more.
This article rereads Akira Kurosawa’s 1960 film The Bad Sleep Well as a modern Hamlet that relocates Shakespeare’s crisis of action from dynastic succession to postwar bureaucratic and corporate modernity. It shifts attention away from plot fidelity and toward how Hamletian functions—staged revelation, damaged legitimacy, obstructed revenge, and the demand for narrative afterlife—are adopted into a corporate world that delegates authority downward, a reworking the article calls structural-political adaptation. Drawing on Carl Schmitt’s account of sovereignty and the political taboo that gives tragic form its density, it argues that Kurosawa adapts the relation between tragedy and what cannot be directly represented. The film’s highest authority is heard on a telephone and never seen. The power of decision has receded behind a bureaucratic apparatus, where neither the avenger nor the camera can follow it. Death and its consequences change accordingly. Nishi dies without a survivor who can perform Horatio’s public function. The institution records his death as an accident and absorbs it into administrative routine. This article argues that The Bad Sleep Well shows how Hamletian action and death survive under faceless institutional power and are shaped by political taboo. Full article
(This article belongs to the Special Issue Echoes of Shakespeare: Intertextual Dialogues Across Centuries)
21 pages, 1048 KB  
Article
Revising Parental Burnout Theory: Toward a Differentiation of Sleep-Related Burnout Subtypes
by Royce Anders, Agnès Breton, Florian Lecuelle, Mélanie Havy, Lisa Brunel, Marie-Paule Gustin, Patricia Franco and Benjamin Putois
Children 2026, 13(3), 394; https://doi.org/10.3390/children13030394 - 12 Mar 2026
Viewed by 1375
Abstract
Background: Contemporary models of parental burnout conceptualize it as an interplay between parental demands and insufficient resources. However, research and current models remain sparse in their understanding of these demands and dynamics within the context of managing a child’s sleep wellness and related [...] Read more.
Background: Contemporary models of parental burnout conceptualize it as an interplay between parental demands and insufficient resources. However, research and current models remain sparse in their understanding of these demands and dynamics within the context of managing a child’s sleep wellness and related problems, which constitute a fundamental aspect in early parenting. The present work addresses this gap by examining this issue comprehensively. Methods: 2291 mother–child dyads were recruited from two sources: a random population sample (n = 1409) and a clinical sample (n = 882) of mothers seeking consultation for their child’s sleep issues (0–5 years old). Mothers completed an extensive panel of validated instruments and survey questions covering burnout and psychopathologies, sleep parameters, psychosocial, organizational, and demographic variables. Inferential analyses, regression modeling, cluster analysis, and mediation models were applied. Results: Two distinct profiles of parental burnout emerged: one associated with child sleep disturbances and the other with general parenting stress. The strongest-weighted risk factors pertained to maladaptive beliefs and perceptions (e.g., shame, “I am a bad parent”, “My child cries because I do not meet his needs”), as well as additive stressors such as interparental tension and daytime child behavioral problems. The strongest protective factors involved resources that reduced parental demands or facilitated recovery, including couple satisfaction, a consistent bedtime routine, greater capacity to take breaks (e.g., additional caregivers, father nighttime involvement, parental cohabitation, and child screen time). Conclusion: The identification of two distinct burnout profiles highlights the importance of incorporating, or placing more centrally, the management of young children’s insomnia in contemporary theoretical models of parental burnout. This research highlights the need for interventions on healthy self-beliefs and perceptions, effective daytime parenting strategies, positive couple dynamics, consistency in bedtime routines, and equitable distribution of caregiving responsibilities between parents to reduce the risk of parental burnout. Full article
(This article belongs to the Section Pediatric Mental Health)
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13 pages, 262 KB  
Article
The Association of Anxiety and Depression with Sleep Disturbances in Parkinson’s Disease
by Cristian Falup-Pecurariu, Iulia Murasan, Vlad Monescu, Cristian Kakucs and Stefania Diaconu
Brain Sci. 2026, 16(2), 172; https://doi.org/10.3390/brainsci16020172 - 31 Jan 2026
Cited by 1 | Viewed by 1650
Abstract
Background: Non-motor symptoms in Parkinson’s disease (PD) consist of a wide spectrum of gastrointestinal impairment, urinary dysfunction, sleep disturbances, fatigue and psychiatric disorders. Mood disorders like anxiety and depression are linked to general well-being and overall quality of life, therefore influencing the amount [...] Read more.
Background: Non-motor symptoms in Parkinson’s disease (PD) consist of a wide spectrum of gastrointestinal impairment, urinary dysfunction, sleep disturbances, fatigue and psychiatric disorders. Mood disorders like anxiety and depression are linked to general well-being and overall quality of life, therefore influencing the amount and quality of restful sleep that the patients can achieve. Objectives: The aim of this study is to determine the prevalence and characteristics of anxiety and depression in PD and to identify the factors that correlate with sleep disturbances. Methods: We conducted a case–control study which included 131 PD patients and 131 controls. Descriptive data was collected, and validated scales and questionnaires regarding sleep, motor symptoms and symptoms related to anxiety and depression were administered. Patients were divided into groups by the presence or absence of sleep disorders (“bad sleepers” and “good sleepers”) and by the presence or absence of anxiety and depression. Comparative analysis was performed. Results: PD patients reported more clinically significant depression than controls and those with concomitant sleep impairment scored higher on depression- and anxiety-specific scales than their better-sleeping counterparts. Age, motor status and sleep impairment were found to be factors associated with depression in PD patients. The presence of sleep disorders was also associated with anxiety. Conclusions: Depression and anxiety are frequent in PD and are associated with comorbid sleep disturbances. Full article
24 pages, 839 KB  
Article
The Association of Physical Activity with Health Indices and Healthcare Utilization
by Anastasia Keremi, Antonia Kaltsatou, Anna Tsiakiri, Dimitrios Tsiptsios, Sotirios Botaitis, Foteini Christidi, Vasilis-Spyridon Tseriotis, Maria Voulgari, Pinelopi Vlotinou, Aspasia Serdari, Kostas Anagnostopoulos and Gregory Tripsianis
Sci 2026, 8(1), 23; https://doi.org/10.3390/sci8010023 - 21 Jan 2026
Viewed by 1330
Abstract
This study aimed to examine the association between physical activity and individuals’ health status, healthcare utilization, socio-demographic characteristics, and health behaviors in a large representative sample from Northern Greece. A cross-sectional study was conducted involving 1227 participants (47.4% males, mean age 49.94 ± [...] Read more.
This study aimed to examine the association between physical activity and individuals’ health status, healthcare utilization, socio-demographic characteristics, and health behaviors in a large representative sample from Northern Greece. A cross-sectional study was conducted involving 1227 participants (47.4% males, mean age 49.94 ± 14.87 years) from Thrace, Greece, selected through a two-stage stratified sampling method. According to the Greek version of IPAQ, participants were classified as inactive/insufficiently active, sufficiently and highly active. Data on socio-demographic, lifestyle, and health-related variables were collected through structured interviews. Multivariate logistic regression analysis was performed to determine the independent effect of physical activity on subjects’ characteristics using SPSS ver. 19. Half of the participants (49.8%) were inactive/insufficiently active, 418 participants (34.1%) were sufficiently active, and 198 participants (16.1%) were highly active. In univariate analysis, smoking (p < 0.001), higher coffee consumption (p = 0.002), higher adherence to Mediterranean diet (p < 0.001), napping during the day (p = 0.017) and short sleep duration (p < 0.001) were associated with lower prevalence of high activity. In adjusted analyses, sufficiently active participants had a lower risk for bad self-rated health (aOR = 0.63), hypertension (aOR = 0.41), dyslipidemia (aOR = 0.42), diabetes (aOR = 0.53), obesity (aOR = 0.61), cardiovascular diseases (aOR = 0.43), anxiety (aOR = 0.65), depression (aOR = 0.56), daily sleepiness (aOR = 0.62), poor sleep quality (aOR = 0.71), as well as for primary (aOR = 0.54) and secondary (aOR = 0.40) healthcare utilization compared to inactive participants. Higher-intensity physical activity did not enhance these beneficial effects of sufficient activity on subjects’ characteristics. Physical inactivity significantly compromises health across multiple domains. Promoting even moderate-intensity physical activity may reduce chronic disease burden and healthcare utilization. Full article
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15 pages, 470 KB  
Article
A Study of Relationships Between Mental Well-Being, Sleep Quality, Eating Behavior, and BMI: A Cross-Sectional Study Among University Students
by Linda Priede, Ilze Beitane and Loreta Beitane
Int. J. Environ. Res. Public Health 2025, 22(10), 1465; https://doi.org/10.3390/ijerph22101465 - 23 Sep 2025
Cited by 5 | Viewed by 3804
Abstract
The study aimed to conduct a multifaceted assessment of university students’ mental health, sleep quality, eating behavior, and BMI, and to investigate the relationships between these factors. The DASS-42 (Depression, Anxiety, and Stress Scale), PSQI (Pittsburgh Sleep Quality Index), free-factor eating questionnaire R18V2, [...] Read more.
The study aimed to conduct a multifaceted assessment of university students’ mental health, sleep quality, eating behavior, and BMI, and to investigate the relationships between these factors. The DASS-42 (Depression, Anxiety, and Stress Scale), PSQI (Pittsburgh Sleep Quality Index), free-factor eating questionnaire R18V2, and BMI were the research instruments used. The study involved 397 university students, 59.9% of which were of a healthy weight. The average scores obtained in the student assessment indicated mild to moderate depression, moderate anxiety, and normal to moderate stress levels. The average uncontrolled eating score was 43.72 ± 14.69, cognitive restraint score—32.86 ± 30.58, and emotional eating score—31.14 ± 29.00. BMI was found to have a weak but significant correlation with cognitive restraint and emotional eating. Sleep quality was found to have a moderately strong correlation with depression, anxiety, and stress. A weak but significant correlation was confirmed between emotional eating and depression, anxiety, and stress. The students were at high risk of depression, anxiety, and stress, which was correlated with poor sleep quality and bad eating behavior. These results will be used to develop a support program that promotes students’ mental well-being, which is essential for academic success. Full article
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14 pages, 251 KB  
Article
Oral Health and Quality of Life in Acromegaly: A Questionnaire-Based Study
by Giovanni Bruno, Francesca Dassie, Giorgia Preo, Ayoub Boutarbouche, Sara Brandolese, Pietro Maffei, Patrizio Bollero, Antonio Gracco, Michele Basilicata and Alberto De Stefani
Dent. J. 2025, 13(6), 226; https://doi.org/10.3390/dj13060226 - 22 May 2025
Cited by 3 | Viewed by 3013
Abstract
Background/Objectives: Acromegaly is a rare chronic disease caused by excess growth hormone (GH) and insulin-like growth hormone 1 (IGF-1) due to a pituitary adenoma. In acromegaly patients, oral and facial manifestations, such as mandibular growth, macroglossia, and dental malocclusion, are common and [...] Read more.
Background/Objectives: Acromegaly is a rare chronic disease caused by excess growth hormone (GH) and insulin-like growth hormone 1 (IGF-1) due to a pituitary adenoma. In acromegaly patients, oral and facial manifestations, such as mandibular growth, macroglossia, and dental malocclusion, are common and can affect quality of life. The aims of the present study were to evaluate the diagnostic path of these patients, the impact that acromegaly had on their oral health, the medical figures involved, and the role played by their dentist. Methods: The data were collected via an anonymous questionnaire to study dental health, dental care, and acromegaly diagnosis and history and via validated questionnaires. The validated questionnaires used were the ESS (Epworth Sleepiness Scale) to assess daytime sleepiness, OHIP-14 (Oral Health Impact Profile-14) to study perceptions of oral health, and AcroQoL to explore quality of life. Results: We enrolled 90 acromegaly patients: 48% of the patients reported acromegaly oral manifestations and 73% reported facial changes. The most frequent oro-facial manifestations reported by the patients were jaw growth (41%), diastema (40%), macroglossia (39%), and increased size of cheekbones (35%). The median OHIP-14 value was 5 (min 0–max 43), and the highest values were recorded in the questions relating to pronunciation difficulties and problems eating due to dental problems, as well as discomfort with dental aesthetics. The patients’ sleep quality was rated as good by 33% of patients, decent by 47%, and bad by 20%. The median ACROQol score achieved by the patients was 69 (min 19, max 98). An inverse and statistically significant correlation was observed between OHIP-14 and AcroQoL scores (Spearman correlation coefficient—0.44, p = 0.0002). Conclusions: Oro-facial changes significantly affect quality of life in cases of acromegaly, yet dental professionals’ involvement in diagnosis and management is limited. Greater awareness among and integration of dental professionals could support earlier detection and improve patient outcomes. Full article
(This article belongs to the Special Issue Oral Health-Related Quality of Life and Its Determinants)
19 pages, 284 KB  
Article
Recognizing the Frequency of Exposure to Cyberbullying in Children: The Results of the National HBSC Study in Serbia
by Milica Kangrga, Dejan Nikolic, Milena Santric-Milicevic, Ljiljana Rakic, Tatjana Knezevic, Goran Djuricic, Jasna Stojkovic, Natasa Radosavljevic, Sladjana Mihajlovic, Biljana Medjo and Milan Lackovic
Children 2024, 11(2), 172; https://doi.org/10.3390/children11020172 - 29 Jan 2024
Cited by 5 | Viewed by 4409
Abstract
Nowadays, children are able to enrich their reality via the Internet. Unfortunately, this may increase their risk of becoming victims of cyberbullying. We analyzed the health characteristics and risk behavior of two cohorts of children in Serbia; those who reported being exposed to [...] Read more.
Nowadays, children are able to enrich their reality via the Internet. Unfortunately, this may increase their risk of becoming victims of cyberbullying. We analyzed the health characteristics and risk behavior of two cohorts of children in Serbia; those who reported being exposed to cyberbullying and those who did not. The statistical differences and logistic regression models were applied to the data on 3267 students collected from 64 schools participating in the 2017 Serbian Study on health behavior in school-age children (HBSC). Children exposed to cyberbullying reported having the following health problems on a daily basis: headache (18.5%), back pain (19.5%), depression (21.6%), irritability or bad mood (17.7%), nervousness (16.0%), sleep problems (16.1%), and dizziness (21.2%). As for the different types of risk behavior, cigarette smoking ranging from six to nine days ever was the most prevalent (26.9%). It was followed closely by getting drunk more than 10 times ever (24.1%). Compared to non-victims, victims were found to be at a higher risk of perceived back pain (OR = 2.27), depression (OR = 1.43), irritability or bad mood (OR = 2.07), nervousness (OR = 2.23), and dizziness (OR = 2.43) as well as being injured once or twice (OR = 1.98) or three or more times (OR = 4.09). Victims were associated with further risk factors: having smoked more than five cigarettes ever in life (OR = 1.73) and having gotten drunk two to three times (OR = 1.71) or four or more times (OR = 1.65). As the number of school-age children using social media continues to rise, we must prioritize educating them about self-help and community resources for addressing related health issues with greater speed and intensity. The findings from Serbia suggest that while children may be aware of their health issues, they may be unaware of their link to cyberbullying, which could hinder their ability to address these issues promptly. The respondents’ attention to the health implications of cyberbullying could be increased by reformulating the survey questions used in the HBSC study. Full article
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19 pages, 388 KB  
Article
Preventive Medicine via Lifestyle Medicine Implementation Practices Should Consider Individuals’ Complex Psychosocial Profile
by Zacharias Papadakis, Andreas Stamatis, Matthew Manierre and Ali Boolani
Healthcare 2022, 10(12), 2560; https://doi.org/10.3390/healthcare10122560 - 17 Dec 2022
Cited by 9 | Viewed by 3570
Abstract
Noncommunicable chronic diseases are associated with lifestyle behaviors. Psychological and social factors may influence the adoption of such behaviors. Being mentally and physically energized or fatigued may influence the intention–behavior gap of healthy lifestyle adoption accordingly. We investigated the associations of age, sex, [...] Read more.
Noncommunicable chronic diseases are associated with lifestyle behaviors. Psychological and social factors may influence the adoption of such behaviors. Being mentally and physically energized or fatigued may influence the intention–behavior gap of healthy lifestyle adoption accordingly. We investigated the associations of age, sex, lifestyle behaviors, mood, and mental and physical energy and fatigue at both the trait and state levels. The participants (N = 670) completed questionnaires assessing their sleep, mood, mental and physical state energy and fatigue, physical activity, mental workload, and diet. The ordinary least squares regression models revealed an overlap between the mental state and trait energy levels for males who consume polyphenols, have a high mental workload, and sleep well. Being younger, having a high stress level, bad sleep habits, and being confused and depressed were associated with high mental fatigue. Physical energy and fatigue shared the same commonalities with the previous results, with greater discrepancies observed between the state and trait indicators compared to that between mental energy and fatigue. Diet and stress management seem to be predictors of high physical energy, and females report higher physical fatigue levels. Health care professionals should consider this psychosocial complex profiling in their differential diagnosis and when one is implementing lifestyle behavioral changes to address the facets of preventive medicine, wellness, and health promotion. Full article
12 pages, 832 KB  
Article
Longitudinal Shifts in Movement Behaviors during the COVID-19 Pandemic: Relations to Posttraumatic Stress Disorder among University Students
by Jie Feng, Patrick Wing Chung Lau, Lei Shi and Wendy Yajun Huang
Int. J. Environ. Res. Public Health 2022, 19(20), 13449; https://doi.org/10.3390/ijerph192013449 - 18 Oct 2022
Cited by 3 | Viewed by 3691
Abstract
This study examined the longitudinal changes of movement behaviors and their relationships with posttraumatic stress disorder (PTSD) among university students during the coronavirus disease 2019 in China. A total of 569 university students completed online surveys twice (Time 1: between December 2020 and [...] Read more.
This study examined the longitudinal changes of movement behaviors and their relationships with posttraumatic stress disorder (PTSD) among university students during the coronavirus disease 2019 in China. A total of 569 university students completed online surveys twice (Time 1: between December 2020 and January 2021; Time 2: between November and December 2021). Physical activity, sedentary behavior, sleep duration and quality, as well as PTSD were self-reported. According to Canadian 24-h movement guidelines, the longitudinal shifts in each movement behavior from Time 1 to Time 2 were divided into four categories (consistently meeting the guidelines, from meeting to not meeting the guidelines, from not meeting to meeting the guidelines, and consistently not meeting the guidelines). Generalized linear mixed models were conducted using 410 valid responses (20.2 ± 1.0 years old at Time 2, 41.2% males). From Time 1 to Time 2, 22.2%, 2.0%, and 45.6% of the students consistently met the physical activity, sedentary behavior, and sleep guidelines, respectively. Compared to those who consistently met the sedentary behavior guideline, students who consistently failed to meet or changed from meeting to not meeting the guidelines had higher levels of PTSD. Students who had poor sleep quality at both time points or changed from good to bad sleep quality had higher levels of PTSD than those who maintained good sleep quality over time. Compared to those who consistently failed to meet the guideline, students who consistently met the PA guideline had higher levels of PTSD. These findings highlight the needs to improve and maintain healthy behaviors for mental health. Full article
(This article belongs to the Special Issue Healthy School in COVID-19: Health Promotion Issues and Challenges)
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13 pages, 308 KB  
Article
Sleep Status and the Associated Factors: A Large Cross-Sectional Study in Shaanxi Province, China
by Yaxuan Zhang, Jiwei Wang, Xinyuan Lu, Beibei Che and Jinming Yu
Int. J. Environ. Res. Public Health 2021, 18(3), 1250; https://doi.org/10.3390/ijerph18031250 - 30 Jan 2021
Cited by 12 | Viewed by 3317
Abstract
This study aimed at investigating the sleep status and its associated factors in Shaanxi province, China. We conducted a cross-sectional study among 11,399 subjects in Shaanxi Province, China. Data were collected via spot field questionnaire surveys. The contents included demographic characteristics, sleep status, [...] Read more.
This study aimed at investigating the sleep status and its associated factors in Shaanxi province, China. We conducted a cross-sectional study among 11,399 subjects in Shaanxi Province, China. Data were collected via spot field questionnaire surveys. The contents included demographic characteristics, sleep status, lifestyles, disease history and other associated factors. Logistic regression analysis was used to estimate the effect of associated factors on sleep quality. A total of 11,036 subjects were included in the final analysis. In total, 12.8% of the participants had bad or very bad sleep. In the last month, 8.4% of the participants had difficulty in initiating sleep, 7.6% of the participants had difficulty in maintaining sleep, 8.8% of the participants suffered from awakening earlier and 10.3% of the participants had the problem of feeling sleepy during the day ≥3 times per week. Poorer sleep quality was associated with being female, being unmarried or without cohabiting with a boyfriend/girlfriend, being divorced or widowed, heart diseases, musculoskeletal diseases, concerns about their own health, drinking alcohol, taking hypnotics, and a longer daily screen time. Better sleep quality was associated with medium education level, high family monthly income, good self-reported health status, and having breakfast regularly. In conclusion, more than one in ten people did not sleep well and suffered from different sleep problems in Shaanxi, China. Sleep quality was associated with sex, marital status, educational level, family monthly income, heart disease, musculoskeletal diseases, degree of concerning about their own health, self-reported health status, drinking alcohol, having breakfast, taking hypnotics and daily screen time. Full article
15 pages, 893 KB  
Article
Prevalence and Determinants of Bad Sleep Perception among Italian Children and Adolescents
by Serena Malloggi, Francesca Conte, Giorgio Gronchi, Gianluca Ficca and Fiorenza Giganti
Int. J. Environ. Res. Public Health 2020, 17(24), 9363; https://doi.org/10.3390/ijerph17249363 - 14 Dec 2020
Cited by 7 | Viewed by 4046
Abstract
Although sleep problems at young ages are well investigated, the prevalence of bad sleepers and the determinants of sleep quality perception remain unexplored in these populations. For this purpose, we addressed these issues in a sample of children (n = 307), preadolescents [...] Read more.
Although sleep problems at young ages are well investigated, the prevalence of bad sleepers and the determinants of sleep quality perception remain unexplored in these populations. For this purpose, we addressed these issues in a sample of children (n = 307), preadolescents (n = 717), and adolescents (n = 406) who completed the School Sleep Habits Survey, addressing sleep quality perception, sleep habits, sleep features, daytime behavior and sleep disturbances, circadian preference, and dreaming. The sample was split in “good sleepers” and “bad sleepers”, based on the answer to the question item assessing overall subjective sleep quality. Being a bad sleeper was reported by 11.7% of the sample, with significant between-groups differences (children: 8.3%; preadolescents: 11.3%; adolescents: 15.3%; p = 0.01). At all ages, relative to good sleepers, bad sleepers showed higher eveningness, sleepiness, and depression, longer sleep latency, more frequent insufficient sleep, nocturnal awakenings, sleep–wake behavioral problems, and unpleasant dreams (all p’s ≤ 0.01). Sleep quality perception was predicted: in children, by depressed mood, eveningness, and unpleasant dreams (all p’s ≤ 0.01); in preadolescents, by sleep latency, awakening frequency, depressed mood, sufficiency of sleep, and unpleasant dreams (all p’s < 0.01); in adolescents, by awakening frequency, depressed mood, and sufficiency of sleep (all p’s < 0.001). In children, bad subjective sleep quality appears to be mainly determined by daytime psychological features, for example, depressed mood, whereas at later ages, sleep characteristics, such as frequent awakenings, add to the former determinants. This could depend on (a) the appearance, with increasing age, of objective sleep modifications and (b) a greater attention paid by adolescents to their sleep characteristics. Full article
(This article belongs to the Special Issue Sleep Quality Research)
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23 pages, 392 KB  
Review
Mental Sleep Activity and Disturbing Dreams in the Lifespan
by Serena Scarpelli, Chiara Bartolacci, Aurora D’Atri, Maurizio Gorgoni and Luigi De Gennaro
Int. J. Environ. Res. Public Health 2019, 16(19), 3658; https://doi.org/10.3390/ijerph16193658 - 29 Sep 2019
Cited by 34 | Viewed by 16179
Abstract
Sleep significantly changes across the lifespan, and several studies underline its crucial role in cognitive functioning. Similarly, mental activity during sleep tends to covary with age. This review aims to analyze the characteristics of dreaming and disturbing dreams at different age brackets. On [...] Read more.
Sleep significantly changes across the lifespan, and several studies underline its crucial role in cognitive functioning. Similarly, mental activity during sleep tends to covary with age. This review aims to analyze the characteristics of dreaming and disturbing dreams at different age brackets. On the one hand, dreams may be considered an expression of brain maturation and cognitive development, showing relations with memory and visuo-spatial abilities. Some investigations reveal that specific electrophysiological patterns, such as frontal theta oscillations, underlie dreams during sleep, as well as episodic memories in the waking state, both in young and older adults. On the other hand, considering the role of dreaming in emotional processing and regulation, the available literature suggests that mental sleep activity could have a beneficial role when stressful events occur at different age ranges. We highlight that nightmares and bad dreams might represent an attempt to cope the adverse events, and the degrees of cognitive-brain maturation could impact on these mechanisms across the lifespan. Future investigations are necessary to clarify these relations. Clinical protocols could be designed to improve cognitive functioning and emotional regulation by modifying the dream contents or the ability to recall/non-recall them. Full article
(This article belongs to the Special Issue Sleep Disorders Across the Lifespan: A Different Perspective)
15 pages, 691 KB  
Article
Does Sleep Mediate the Association between School Pressure, Physical Activity, Screen Time, and Psychological Symptoms in Early Adolescents? A 12-Country Study
by Ann Vandendriessche, Ariane Ghekiere, Jelle Van Cauwenberg, Bart De Clercq, Karlien Dhondt, Ann DeSmet, Jorma Tynjälä, Maïté Verloigne and Benedicte Deforche
Int. J. Environ. Res. Public Health 2019, 16(6), 1072; https://doi.org/10.3390/ijerph16061072 - 25 Mar 2019
Cited by 60 | Viewed by 11614
Abstract
This study examines the mediating role of sleep duration and sleep onset difficulties in the association of school pressure, physical activity, and screen time with psychological symptoms in early adolescents. Data were retrieved from 49,403 children (13.7 ± 1.6 years old, 48.1% boys) [...] Read more.
This study examines the mediating role of sleep duration and sleep onset difficulties in the association of school pressure, physical activity, and screen time with psychological symptoms in early adolescents. Data were retrieved from 49,403 children (13.7 ± 1.6 years old, 48.1% boys) from 12 countries participating in the World Health Organization (WHO) “Health Behaviour in School-aged Children” 2013/2014 study. A validated self-report questionnaire assessed psychological symptoms (feeling low, irritability or bad temper, feeling nervous), school pressure, physical activity (number of days/week 60 min moderate-to-vigorous), screen time, sleep duration on week- and weekend days, and perceived difficulties in getting asleep. Multilevel mediation analyses were conducted. School pressure and screen time were positively associated with psychological symptoms, whereas physical activity was negatively associated. With the exception of sleep duration in the association between physical activity and psychological symptoms, all associations were significantly mediated by sleep duration on week- and weekend days and sleep onset difficulties. Percentages mediated ranged from 0.66% to 34.13%. This study partly explains how school pressure, physical activity, and screen time are related to adolescents’ psychological symptoms. Future interventions improving adolescents’ mental well-being could target schoolwork, physical activity, and screen time, as these behaviours are directly and indirectly (through sleep) related to psychological symptoms. Full article
(This article belongs to the Special Issue Sedentary Behaviour and Health)
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4 pages, 1088 KB  
Proceeding Paper
Low-Power Odor-Sensing Network Based on Wake-Up Nodes
by Alvaro Ortiz Perez, Benedikt Bierer, Cem Dinc, Jürgen Wöllenstein and Stefan Palzer
Proceedings 2017, 1(4), 570; https://doi.org/10.3390/proceedings1040570 - 25 Aug 2017
Viewed by 2448
Abstract
The localization of bad odors is a long standing issue with high relevance for affected people because of the health and safety implications. In order to enable the detection and localization of bad odors we propose a wireless, low-power consuming sensor network. The [...] Read more.
The localization of bad odors is a long standing issue with high relevance for affected people because of the health and safety implications. In order to enable the detection and localization of bad odors we propose a wireless, low-power consuming sensor network. The sensor nodes are designed to wake-up upon initial detection of a bad odor to then start to measure the strength of the odor. Taking into account the spatial variation of the bad odor as well as environmental parameters the odor source may be identified. After the odor vanishes the sensor nodes return to sleep mode. Full article
(This article belongs to the Proceedings of Proceedings of Eurosensors 2017, Paris, France, 3–6 September 2017)
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