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French F, Bwye P, Carrigan L, Coe JC, Kelly R, Leek T, Lynch EC, Mahan E, Mingee C. Welfare and Enrichment of Managed Nocturnal Species, Supported by Technology. Animals (Basel) 2024; 14:2378. [PMID: 39199912 PMCID: PMC11350655 DOI: 10.3390/ani14162378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 08/13/2024] [Accepted: 08/15/2024] [Indexed: 09/01/2024] Open
Abstract
This paper addresses the potential for technology to support husbandry and enrichment opportunities that enhance the welfare of zoo and sanctuary-housed nocturnal and crepuscular species. This topic was investigated through the medium of a multidisciplinary workshop (Moon Jam) that brought together species experts, zoo designers, Animal-Computer Interaction researchers and post-graduate students in collaborative discussions and design sessions. We explain the context through an examination of existing research and current practices, and report on specific challenges raised and addressed during the Moon Jam, highlighting and discussing key themes that emerged. Finally, we offer a set of guidelines to support the integration of technology into the design of animal husbandry and enrichment that support wellbeing, to advance the best practices in keeping and managing nocturnal and crepuscular animals.
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Affiliation(s)
- Fiona French
- School of Computing and Digital Media, London Metropolitan University, 166-220 Holloway Road, London N7 8DB, UK
| | - Paige Bwye
- Bristol Zoological Society, Hollywood Lane, Bristol BS10 7TW, UK;
| | | | | | - Robert Kelly
- Centre for Research in Animal Behaviour, University of Exeter, Rennes Drive, Exeter EX4 4RN, UK;
| | - Tiff Leek
- Faculty of Science, Technology, Engineering and Maths, The Open University, Milton Keynes MK7 6AA, UK;
| | - Emily C. Lynch
- North Carolina Zoo, 4401 Zoo Parkway, Asheboro, NC 27205, USA; (E.C.L.); (E.M.); (C.M.)
| | - Eric Mahan
- North Carolina Zoo, 4401 Zoo Parkway, Asheboro, NC 27205, USA; (E.C.L.); (E.M.); (C.M.)
| | - Cathy Mingee
- North Carolina Zoo, 4401 Zoo Parkway, Asheboro, NC 27205, USA; (E.C.L.); (E.M.); (C.M.)
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Bauducco S, Pillion M, Bartel K, Reynolds C, Kahn M, Gradisar M. A bidirectional model of sleep and technology use: A theoretical review of How much, for whom, and which mechanisms. Sleep Med Rev 2024; 76:101933. [PMID: 38657359 DOI: 10.1016/j.smrv.2024.101933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 03/01/2024] [Accepted: 04/05/2024] [Indexed: 04/26/2024]
Abstract
The link between technology and sleep is more complex than originally thought. In this updated theoretical review, we propose a new model informed by the growing body of evidence in the area over the past 10 years. The main theoretical change is the addition of bi-directional links between the use of technology and sleep problems. We begin by reviewing the evidence to date for the originally proposed mechanisms of bright light, arousal, nighttime sleep disruptions, and sleep displacement. Then, in support of the new direction of effect (sleep problems preceding technology use), we propose two new mechanisms: technology before sleep might be used as a time filler and/or as an emotional regulation strategy to facilitate the sleep-onset process. Finally, we present potential moderators of the association between technology and sleep, in recognition of protective and vulnerability factors that may mitigate or exacerbate the effects of technology on sleep and vice versa. The goal of this theoretical review is to update the field, guide future public health messages, and to prompt new research into how much technology and sleep affect each other, for whom it may be problematic, and which mechanisms may explain their association.
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Affiliation(s)
- Serena Bauducco
- Örebro University, School of Behavioural, Social and Legal Sciences, Sweden; Flinders University, College of Education, Psychology and Social Work, Australia.
| | - Meg Pillion
- Flinders University, College of Education, Psychology and Social Work, Australia
| | - Kate Bartel
- WINK Sleep Pty Ltd, Adelaide, Australia; Riverland Academy of Clinical Excellence, Riverland Mallee Coorong Local Health Network, Australia; Flinders University, College of Medicine and Public Health, Australia
| | - Chelsea Reynolds
- Flinders University, College of Education, Psychology and Social Work, Australia; WINK Sleep Pty Ltd, Adelaide, Australia
| | - Michal Kahn
- Tel Aviv University, School of Psychological Sciences, Israel
| | - Michael Gradisar
- WINK Sleep Pty Ltd, Adelaide, Australia; Sleep Cycle AB, Gothenburg, Sweden
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Firth J, Torous J, López-Gil JF, Linardon J, Milton A, Lambert J, Smith L, Jarić I, Fabian H, Vancampfort D, Onyeaka H, Schuch FB, Firth JA. From "online brains" to "online lives": understanding the individualized impacts of Internet use across psychological, cognitive and social dimensions. World Psychiatry 2024; 23:176-190. [PMID: 38727074 PMCID: PMC11083903 DOI: 10.1002/wps.21188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/13/2024] Open
Abstract
In response to the mass adoption and extensive usage of Internet-enabled devices across the world, a major review published in this journal in 2019 examined the impact of Internet on human cognition, discussing the concepts and ideas behind the "online brain". Since then, the online world has become further entwined with the fabric of society, and the extent to which we use such technologies has continued to grow. Furthermore, the research evidence on the ways in which Internet usage affects the human mind has advanced considerably. In this paper, we sought to draw upon the latest data from large-scale epidemiological studies and systematic reviews, along with randomized controlled trials and qualitative research recently emerging on this topic, in order to now provide a multi-dimensional overview of the impacts of Internet usage across psychological, cognitive and societal outcomes. Within this, we detail the empirical evidence on how effects differ according to various factors such as age, gender, and usage types. We also draw from new research examining more experiential aspects of individuals' online lives, to understand how the specifics of their interactions with the Internet, and the impact on their lifestyle, determine the benefits or drawbacks of online time. Additionally, we explore how the nascent but intriguing areas of culturomics, artificial intelligence, virtual reality, and augmented reality are changing our understanding of how the Internet can interact with brain and behavior. Overall, the importance of taking an individualized and multi-dimensional approach to how the Internet affects mental health, cognition and social functioning is clear. Furthermore, we emphasize the need for guidelines, policies and initiatives around Internet usage to make full use of the evidence available from neuroscientific, behavioral and societal levels of research presented herein.
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Affiliation(s)
- Joseph Firth
- Division of Psychology and Mental Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
- Greater Manchester Mental Health NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - John Torous
- Division of Digital Psychiatry, Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - José Francisco López-Gil
- One Health Research Group, Universidad de las Americas, Quito, Ecuador
- Department of Environmental Health, T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Jake Linardon
- School of Psychology, Deakin University, Geelong, VIC, Australia
| | - Alyssa Milton
- Central Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Australian Research Council, Centre of Excellence for Children and Families over the Life Course, Sydney, NSW, Australia
| | | | - Lee Smith
- Centre for Health Performance and Wellbeing, Anglia Ruskin University, Cambridge, UK
| | - Ivan Jarić
- Laboratoire Ecologie, Systématique et Evolution, Université Paris-Saclay, Gif-sur-Yvette, France
- Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic
| | - Hannah Fabian
- Division of Psychology and Mental Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Davy Vancampfort
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
- University Psychiatric Center, KU Leuven, Leuven, Belgium
| | - Henry Onyeaka
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA
| | - Felipe B Schuch
- Department of Sports Methods and Techniques, Federal University of Santa Maria, Santa Maria, Brazil
- Institute of Psychiatry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Institute of Health Sciences, Universidad Autônoma de Chile, Providência, Chile
| | - Josh A Firth
- Department of Biology, University of Oxford, Oxford, UK
- School of Biology, University of Leeds, Leeds, UK
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Hiramoto K, Kubo S, Tsuji K, Sugiyama D, Hamano H. Decreased Memory and Learning Ability Mediated by Bmal1/M1 Macrophages/Angptl2/Inflammatory Cytokine Pathway in Mice Exposed to Long-Term Blue Light Irradiation. Curr Issues Mol Biol 2024; 46:4924-4934. [PMID: 38785563 PMCID: PMC11120424 DOI: 10.3390/cimb46050295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/16/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024] Open
Abstract
Humans are persistently exposed to massive amounts of blue light via sunlight, computers, smartphones, and similar devices. Although the positive and negative effects of blue light on living organisms have been reported, its impact on learning and memory remains unknown. Herein, we examined the effects of widespread blue light exposure on the learning and memory abilities of blue light-exposed mice. Ten-week-old male ICR mice were divided into five groups (five mice/group) and irradiated with blue light from a light-emitting diode daily for 6 months. After 6 months of blue light irradiation, mice exhibited a decline in memory and learning abilities, assessed using the Morris water maze and step-through passive avoidance paradigms. Blue light-irradiated mice exhibited a decreased expression of the clock gene brain and muscle arnt-like 1 (Bmal1). The number of microglia and levels of M1 macrophage CC-chemokine receptor 7 and inducible nitric oxide synthase were increased, accompanied by a decrease in M2 macrophage arginase-1 levels. Levels of angiopoietin-like protein 2 and inflammatory cytokines interleukin-6, tumor necrosis factor-α, and interleukin-1β were elevated. Our findings suggest that long-term blue light exposure could reduce Bmal1 expression, activate the M1 macrophage/Angptl2/inflammatory cytokine pathway, induce neurodegeneration, and lead to a decline in memory.
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Affiliation(s)
- Keiichi Hiramoto
- Department of Pharmaceutical Sciences, Suzuka University of Medical Science, Suzuka 513-8670, Mie, Japan
| | - Sayaka Kubo
- Research Department, Daiichi Sankyo Healthcare Co., Ltd., Chuo-ku 140-8170, Tokyo, Japan; (S.K.); (K.T.); (D.S.); (H.H.)
| | - Keiko Tsuji
- Research Department, Daiichi Sankyo Healthcare Co., Ltd., Chuo-ku 140-8170, Tokyo, Japan; (S.K.); (K.T.); (D.S.); (H.H.)
| | - Daijiro Sugiyama
- Research Department, Daiichi Sankyo Healthcare Co., Ltd., Chuo-ku 140-8170, Tokyo, Japan; (S.K.); (K.T.); (D.S.); (H.H.)
| | - Hideo Hamano
- Research Department, Daiichi Sankyo Healthcare Co., Ltd., Chuo-ku 140-8170, Tokyo, Japan; (S.K.); (K.T.); (D.S.); (H.H.)
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Garcês CP, Soares CFV, Sisconeto TM, Martins GCB, Dias MA, Vivenzio RA, Moreira TF, Camargo YDS, Crispim CA, Balieiro LCT, Cheik NC. Lifestyle, meal times, and sleep patterns changes in higher education professors during COVID-19: Association with non-communicable chronic diseases. Work 2024:WOR230518. [PMID: 38701123 DOI: 10.3233/wor-230518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024] Open
Abstract
BACKGROUND In response to the COVID-19 pandemic, educational institutions had to swiftly adapt and transition to remote teaching in order to maintain academic activities. However, these changes presented a number of challenges for professors, which could have negative effects on their health. OBJECTIVE To analyze the association between changes in dietary and sleep habits, physical activity level, and sedentary behavior with the development of non-communicable diseases (NCDs) among Brazilian higher education professors during the pandemic period. METHODS This is a cross-sectional and retrospective study conducted using an online form. Generalized linear models, adjusted for age, sex, and body mass index, were used to verify the difference between pre-pandemic and pandemic periods. Logistic regression models were used to predict the odds ratio (OR) for the development of NCDs according to physical activity time, sedentary behavior time, dietary and sleep patterns. RESULTS A total of 936 professors residing across Brazil participated in the survey. The duration of sedentary behavior increased, sleep duration slightly decreased, and meal times shifted to earlier during the pandemic. A total of 22.9%of the participants reported the diagnosis of some NCDs during this period. Physical activity practice was associated with a lower risk of diseases during the pandemic, regardless of the intensity performed. On the other hand, late eating habits and excessive food consumption during the pandemic were associated with a higher risk. CONCLUSION The results provide data that can help in the development of public policies that promote health actions to minimize the consequences associated with the pandemic period.
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Affiliation(s)
| | | | | | | | - Marina Abreu Dias
- Faculty of Medicine, Federal University of Uberlândia, Uberlândia, Brazil
| | - Rafaella Andrade Vivenzio
- Faculty of Philosophy, Sciences, and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | | | | | | | | | - Nadia Carla Cheik
- Faculty of Physical Education and Physiotherapy, Federal University of Uberlândia, Uberlândia, Brazil
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Chen H, Zhao D, Guo Z, Ma D, Wu Y, Chen G, Liu Y, Kong T, Wang F. U-shaped relationship between lights-out time and nocturnal oxygen saturation during the first trimester: An analysis based on the nuMOM2b-SDB data. Heliyon 2024; 10:e29494. [PMID: 38681541 PMCID: PMC11053181 DOI: 10.1016/j.heliyon.2024.e29494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 05/01/2024] Open
Abstract
Objective Preventing adverse events due to unstable oxygen saturation (SpO2) at night in pregnant women is of utmost importance. Poor sleep has been demonstrated to impact SpO2 levels. Nowadays, many gravida have a habit of prolonged exposure to light before sleep, which can disrupt their sleep. Therefore, this study aimed at investigate the relationship between lights-out time, sleep parameters and SpO2, exploring the underlying mechanisms. Methods The data of 2881 eligible subjects from the Nulliparous Pregnancy Outcomes Study Monitoring Mothers-to-be and Sleep Disordered Breathing (nuMOM2b-SDB) database were analyzed. Multiple linear regression models were used to investigate the relationship between lights-out time and SpO2. In addition, restricted cubic splines (RCS) were employed to fit the nonlinear correlation between the two variables. The smoothing curve method was further utilized to depict the relationship between lights-out time and SpO2 based on various subgroup variables. Results All participants were categorized according to race/ethnicity. A negative correlation was observed between nighttime lights-out time and average value of SpO2 (Avg-SpO2) (β = -0.05, p = 0.010). RCS revealed a U-shaped relationship between lights-out time and Avg-SpO2, with the turning point at 22:00. The subcomponent stratification results indicated that the Avg-SpO2 and minimum value of SpO2(Min-SpO2) of advanced maternal age decreased as the lights-out time was delayed. Furthermore, overweight and obese gravida showed lower Avg-SpO2 and Min-SpO2 levels than normal weight. Conclusions A U-shaped relationship was identified between lights-out time and nocturnal Avg-SpO2 during early pregnancy, with the inflection at 22:00. Notably, later lights-out times are associated with lower levels of Min-SpO2 for advanced maternal age. The findings suggest that appropriately adjusting the duration of light exposure before sleep and maintaining a relatively restful state may be more beneficial for the stability of SpO2 in pregnant women. Conversely, deviations from these practices could potentially lead to pathological alterations in SpO2 levels.
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Affiliation(s)
- Hongxu Chen
- School of Public Health, Xinjiang Medical University, Urumqi, 830063, China
| | - Danyang Zhao
- Medical Neurobiology Lab, Inner Mongolia Medical University, Huhhot, 010110, China
| | - Zixuan Guo
- Medical Neurobiology Lab, Inner Mongolia Medical University, Huhhot, 010110, China
| | - Duo Ma
- Department of Ultrasonography, The Second Affiliated Hospital of Xiamen Medical College, Xiamen, China
| | - Yan Wu
- Beijing Hui-Long-Guan Hospital, Peking University, Beijing, 100096, China
| | - Guangxue Chen
- Department of Gynaecology and Obstetrics, Beijing Jishuitan Hospital, Beijing, 102208, China
| | - Yanlong Liu
- School of Mental Health, Wenzhou Medical University, Wenzhou, 325035, China
| | - Tiantian Kong
- Xinjiang Key Laboratory of Neurological Disorder Research, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, 830063, China
| | - Fan Wang
- Beijing Hui-Long-Guan Hospital, Peking University, Beijing, 100096, China
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Rabiei M, Masoumi SJ, Haghani M, Nematolahi S, Rabiei R, Mortazavi SMJ. Do blue light filter applications improve sleep outcomes? A study of smartphone users' sleep quality in an observational setting. Electromagn Biol Med 2024; 43:107-116. [PMID: 38461462 DOI: 10.1080/15368378.2024.2327432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 03/03/2024] [Indexed: 03/12/2024]
Abstract
Exposure to blue light at bedtime, suppresses melatonin secretion, postponing the sleep onset and interrupting the sleep process. Some smartphone manufacturers have introduced night-mode functions, which have been claimed to aid in improving sleep quality. In this study, we evaluate the impact of blue light filter application on decreasing blue light emissions and improving sleep quality. Participants in this study recorded the pattern of using their mobile phones through a questionnaire. In order to evaluate sleep quality, we used a PSQI questionnaire. Blue light filters were used by 9.7% of respondents, 9.7% occasionally, and 80% never. The mean score of PSQI was more than 5 in 54.10% of the participants and less than 5 in 45.90%. ANOVA test was performed to assess the relationship between using blue light filter applications and sleep quality (p-value = 0.925). The findings of this study indicate a connection between the use of blue light filter apps and habitual sleep efficiency in the 31-40 age group. However, our results align only to some extent with prior research, as we did not observe sustained positive effects on all parameters of sleep quality from the long-term use of blue light filtering apps. Several studies have found that blue light exposure can suppress melatonin secretion, exacerbating sleep problems. Some studies have reported that physical blue light filters, such as lenses, can affect melatonin secretion and improve sleep quality. However, the impact of blue light filtering applications remains unclear and debatable.
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Affiliation(s)
- Marziye Rabiei
- Student Research Committee, Department of Medical Physics and Engineering, School of Medicine, Shiraz University of Medical Science, Shiraz, Iran
| | - Seyed Jalil Masoumi
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Science, Shiraz, Iran
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Center for Cohort Study of SUMS Employees' Health, Shiraz University of Medical Science, Shiraz, Iran
| | - Masoud Haghani
- Department of Radiology, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Samaneh Nematolahi
- Non-Communicable Diseases Research Center, Bam University of Medical Sciences, Bam, Iran
| | - Reza Rabiei
- Educational science expert, Department of Education, Bushehr, Iran
| | - Seyed Mohammad Javad Mortazavi
- Ionizing and Non-Ionizing Radiation Protection Research Center (INIRPRC), School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Medical Physics and Engineering, School of Medicine, Shiraz University of Medical Science, Shiraz, Iran
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Javelle F, Schlagheck ML, Broos HC, Timpano KR, Joormann J, Zimmer P, Johnson SL. On the impulsivity path: Examining the unique and conjoint relations between emotion- and non-emotion-related impulsivity, internalizing symptoms, alcohol use, and physical health parameters. J Clin Psychol 2024; 80:339-354. [PMID: 37883120 PMCID: PMC11170548 DOI: 10.1002/jclp.23608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 09/21/2023] [Accepted: 09/30/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND Researchers have increasingly differentiated trait-like tendencies toward impulsivity occurring during emotional states (emotion-related impulsivity [ERI]) from impulsivity not tied to emotion (non-ERI). Relative to non-ERI, ERI has shown robust correlations with psychopathology and mild to moderate associations with physical health parameters (e.g., physical activity, poor sleep quality, body mass index [BMI]). Therefore, we first aimed to investigate the unique contributions of ERI and non-ERI to psychopathology symptoms while controlling for neuroticism. Second, we sought to explore the combined associations of physical health parameters with several impulsivity forms. METHODS German-speaking adults (N = 350, 35.9 ± 14.6 years, 69.1% female, BMI: 24.0 ± 4.8 kg/m2 , mostly students or employees) completed measures of impulsivity, psychopathology symptoms, neuroticism, and physical health. We gathered measures of two ERI forms: Feelings Trigger Action and Pervasive Influence of Feelings. As a control comparison, we gathered a measure of non-ERI, the Lack of Follow-Through scale. We conducted separate path models for Aims 1 and 2. RESULTS For Aim 1, Pervasive Influence of Feelings showed strong links with internalizing symptoms. Feelings Trigger Action and Lack of Follow-Through showed small links with alcohol use. For Aim 2, poor sleep quality was related to all three impulsivity factors, while physical activity was only related to Pervasive Influence of Feelings and Lack of Follow-Through. BMI showed a curvilinear association with impulsivity. CONCLUSIONS ERI is more directly relevant than non-ERI for psychopathology symptoms, emphasizing the need to differentiate between the two ERI types. The association of ERI and non-ERI with physical activity and poor sleep quality may serve as potential treatment targets for impulsivity-related problems.
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Affiliation(s)
- Florian Javelle
- NeuroPsychoImmunology Research Unit, Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Marit L. Schlagheck
- Division of Performance and Health, Institute for Sport and Sport Science, Technical University Dortmund, Dortmund, Germany
| | - Hannah C. Broos
- Department of Psychology, University of Miami, Coral Gables, Florida, USA
| | - Kiara R. Timpano
- Department of Psychology, University of Miami, Coral Gables, Florida, USA
| | - Jutta Joormann
- Department of Psychology, Yale University, New Haven, Connecticut, USA
| | - Philipp Zimmer
- Division of Performance and Health, Institute for Sport and Sport Science, Technical University Dortmund, Dortmund, Germany
| | - Sheri L. Johnson
- Department of Psychology, University of California Berkeley, Berkeley, California, USA
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9
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Witt RM, Byars KC, Decker K, Dye TJ, Riley JM, Simmons D, Smith DF. Current Considerations in the Diagnosis and Treatment of Circadian Rhythm Sleep-Wake Disorders in Children. Semin Pediatr Neurol 2023; 48:101091. [PMID: 38065634 PMCID: PMC10710539 DOI: 10.1016/j.spen.2023.101091] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 09/29/2023] [Indexed: 12/18/2023]
Abstract
Circadian Rhythm Sleep-Wake Disorders (CRSWDs) are important sleep disorders whose unifying feature is a mismatch between the preferred or required times for sleep and wakefulness and the endogenous circadian drives for these. Their etiology, presentation, and treatment can be different in pediatric patients as compared to adults. Evaluation of these disorders must be performed while viewed through the lens of a patient's comorbid conditions. Newer methods of assessment promise to provide greater diagnostic clarity and critical insights into how circadian physiology affects overall health and disease states. Effective clinical management of CRSWDs is multimodal, requiring an integrated approach across disciplines. Therapeutic success depends upon appropriately timed nonpharmacologic and pharmacologic interventions. A better understanding of the genetic predispositions for and causes of CRSWDs has led to novel clinical opportunities for diagnosis and improved therapeutics.
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Affiliation(s)
- Rochelle M Witt
- Division of Child Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Kelly C Byars
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Kristina Decker
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Thomas J Dye
- Division of Child Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Jessica M Riley
- Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Danielle Simmons
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH; Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - David F Smith
- Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; Department of Otolaryngology- Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH.
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10
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Bessman SC, Harrison EM, Easterling AP, Snider MN, Preilipper SMM, Glickman GL. Hybrid effectiveness-implementation study of two novel spectrally engineered lighting interventions for shiftworkers on a high-security watchfloor. SLEEP ADVANCES : A JOURNAL OF THE SLEEP RESEARCH SOCIETY 2023; 4:zpad051. [PMID: 38084298 PMCID: PMC10710545 DOI: 10.1093/sleepadvances/zpad051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/13/2023] [Indexed: 06/26/2024]
Abstract
Shiftwork leads to myriad negative health and safety outcomes. Lighting countermeasures can benefit shiftworkers via physiological effects of light (e.g. alerting, circadian adjustment), and short-wavelength light is the most potent for eliciting those responses; however, limited work indicates it may not be required for alerting. We developed similar-appearing light boxes (correlated color temperature: 3000-3375 K; photopic illuminance: 260-296 lux), enriched (SW+, melanopic EDI: 294 lux) or attenuated (SW-, melanopic EDI: 103 lux) in short-wavelength energy, and implemented them on a high-security watchfloor. Efficacy and feasibility of these two novel lighting interventions were assessed in personnel working 12-hour night shifts (n = 47) in this within-participants, crossover study. For each intervention condition, light boxes were arranged across the front of the watchfloor and illuminated the entire shift; blue-blocking glasses were worn post-shift and before sleep; and sleep masks were used while sleeping. Comparisons between baseline and intervention conditions included alertness, sleep, mood, quality of life (QOL), and implementation measures. On-shift alertness (Karolinska Sleepiness Scale) increased in SW- compared to baseline, while changes in SW+ were more limited. Under SW+, both mood and sleep improved. Psychomotor vigilance task performance did not vary by condition; however, perceived performance and QOL were higher, and reported caffeine consumption and sleep onset latency were lower, under SW-. For both interventions, satisfaction and comfort were high, and fewer symptoms and negative feelings were reported. The addition of spectrally engineered lights to this unique work environment improved sleep, alertness, and mood without compromising visual comfort and satisfaction. This paper is part of the Sleep and Circadian Rhythms: Management of Fatigue in Occupational Settings Collection.
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Affiliation(s)
- Sara C Bessman
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. (HJF), Bethesda, USA
- Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, USA
| | - Elizabeth M Harrison
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. (HJF), Bethesda, USA
- Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, USA
| | - Alexandra P Easterling
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. (HJF), Bethesda, USA
- Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, USA
| | - Michelle N Snider
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. (HJF), Bethesda, USA
- Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, USA
| | - Sebastian M M Preilipper
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc. (HJF), Bethesda, USA
- Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, USA
| | - Gena L Glickman
- Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, USA
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11
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Pastor-Idoate S, Mateos-Olivares M, Sobas EM, Marcos M, Toribio A, Pastor JC, Usategui Martín R. Short-Wavelength Light-Blocking Filters and Oral Melatonin Administration in Patients With Retinitis Pigmentosa: Protocol for a Randomized Controlled Trial. JMIR Res Protoc 2023; 12:e49196. [PMID: 37971796 PMCID: PMC10690531 DOI: 10.2196/49196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 09/27/2023] [Accepted: 10/10/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND The medical community is beginning to recognize that retinitis pigmentosa (RP), due to its disabling progression, eventually leads to a reduction in the patient´s quality of life, a direct economic impact, and an increase in the burden on the health care system. There is no curative treatment for the origin of the disease, and most of the current interventions fail in reducing the associated negative psychological states, such as anxiety and depression, which lead to increased variability of vision and pose a continuous threat to the patient's independence. OBJECTIVE The aim of this study is to assess the effect of oral melatonin (OM) administration alone and combined with short-wavelength light (SWL)-blocking filters on patients with RP and test their effectiveness in improving the level of stress and sleep problems in many of these patients. METHODS We have developed a low-cost therapy protocol for patients with RP with sleep disorders and negative psychological stress. Patients will be randomized to receive a combined intervention with SWL-blocking filters and OM, SWL-blocking filters alone, or OM alone. There will also be a nonintervention arm as a control group. This study will be conducted across 2 retinal units in patients with RP with sleep disorders and high perceived stress and anxiety score reports. Patients will be assessed in the preintervention period, weekly during the 4 weeks of intervention, and then at 6 months postintervention. The primary outcomes are the differences in changes from baseline to postintervention in hormone release (α-amylase, cortisol, and melatonin) and sleep quality, as measured with the visual analog scale. Secondary outcome measures include clinical macular changes, as measured with optical coherence tomography and optical coherence tomography angiography; retinal function, as measured using the visual field and best-corrected visual acuity; sleep data collected from personal wearables; and several patient-reported variables, such as self-recorded sleep diaries, quality of life, perceived stress, and functional status. RESULTS This project is still a study protocol and has not yet started. Bibliographic research for information for its justification began in 2020, and this working group is currently seeking start-up funding. As soon as we have the necessary means, we will proceed with the registration and organization prior to the preliminary phase. CONCLUSIONS In this feasibility randomized clinical controlled trial, we will compare the effects of SWL blocking alone, administration of OM alone, and a combined intervention with both in patients with RP. We present this study so that it may be replicated and incorporated into future studies at other institutions, as well as applied to additional inherited retinal dystrophies. The goal of presenting this protocol is to aid recent efforts in reducing the impact of sleeping disorders and other psychological disorders on the quality of life in patients with RP and recovering their self-autonomy. In addition, the results of this study will represent a significant step toward developing a novel low-cost therapy for patients with RP and validating a novel therapeutic target. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) PRR1-10.2196/49196.
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Affiliation(s)
- Salvador Pastor-Idoate
- Institute of Applied Ophthalmobiology, University of Valladolid, Valladolid, Spain
- Department of Ophthalmology, Clinical University Hospital of Valladolid, Valladolid, Spain
- Networks of Cooperative Research oriented to Health Results, National Institute of Health Carlos III, Madrid, Spain
- European Reference Network dedicated to Rare Eye Diseases, Valladolid, Spain
| | - Milagros Mateos-Olivares
- Department of Ophthalmology, Clinical University Hospital of Valladolid, Valladolid, Spain
- Department of Ophthalmology, Clinical University Hospital of Caceres, Caceres, Spain
| | - Eva María Sobas
- Institute of Applied Ophthalmobiology, University of Valladolid, Valladolid, Spain
- Nursing School, University of Valladolid, Valladolid, Spain
| | - Miguel Marcos
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
- Institute of Biomedical Research of Salamanca, University of Salamanca, Salamanca, Spain
| | - Alfredo Toribio
- Federation of Associations of Hereditary Retinal Dystrophies in Spain, Valladolid, Spain
| | - José Carlos Pastor
- Institute of Applied Ophthalmobiology, University of Valladolid, Valladolid, Spain
- Networks of Cooperative Research oriented to Health Results, National Institute of Health Carlos III, Madrid, Spain
- European Reference Network dedicated to Rare Eye Diseases, Valladolid, Spain
| | - Ricardo Usategui Martín
- Institute of Applied Ophthalmobiology, University of Valladolid, Valladolid, Spain
- Department of Cellular Biology, Faculty of Medicine, University of Valladolid, Valladolid, Spain
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12
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Li H, Li Z, Zhao J, Wang G, Wang H, Zhang J, Ni X. Investigation of Factors Influencing Sleep Status in Beijing Children Aged 3 to 14 Years. Ann Otol Rhinol Laryngol 2023; 132:1336-1340. [PMID: 36734169 DOI: 10.1177/00034894231152754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To investigate the current status of children's sleep in Beijing and analyze the factors that influence it. MATERIALS AND METHODS Using multi-stage stratified cluster random sampling, a total of 11 420 children aged 3 to 14 years in 7 districts of Beijing were included in this study. The Pediatric Sleep Questionnaire (PSQ) was used to investigate and analyze various factors influencing sleep. RESULTS The mean PSQ score of the children surveyed was 3.60 ± 2.69 points. The proportion of children with a score above 7 was 8.87%. Multi-level model analysis showed that the younger children had higher PSQ scores than older and that the boys had higher PSQ scores than the girls. CONCLUSIONS The sleep quality of children in Beijing is not optimistic. The PSQ score of preschool children is higher than school age children. It is recommended that parents pay attention to their children's sleep status and try to remove influencing factors.
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Affiliation(s)
- Hongbin Li
- National Center for Children's Health (NCCH), Beijing, China
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing, China
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology Head and Neck Surgery, Beijing, China
| | - Zhuo Li
- Department of Otolaryngology, Beijing First Hospital of Integrated Chinese and Western Medicine, Beijing, China
| | - Jing Zhao
- National Center for Children's Health (NCCH), Beijing, China
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing, China
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology Head and Neck Surgery, Beijing, China
| | - Guixiang Wang
- National Center for Children's Health (NCCH), Beijing, China
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing, China
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology Head and Neck Surgery, Beijing, China
| | - Hua Wang
- National Center for Children's Health (NCCH), Beijing, China
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing, China
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology Head and Neck Surgery, Beijing, China
| | - Jie Zhang
- National Center for Children's Health (NCCH), Beijing, China
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing, China
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology Head and Neck Surgery, Beijing, China
| | - Xin Ni
- National Center for Children's Health (NCCH), Beijing, China
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing, China
- Beijing Key Laboratory for Pediatric Diseases of Otolaryngology Head and Neck Surgery, Beijing, China
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13
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Yared L, Rodrigues K, Mangal R, Stead TS, Ganti L. Sleep Hygiene, Daytime Sleepiness, and Coping Mechanisms Amongst US Adults. Cureus 2023; 15:e45608. [PMID: 37868531 PMCID: PMC10588676 DOI: 10.7759/cureus.45608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/19/2023] [Indexed: 10/24/2023] Open
Abstract
Background Excessive daytime sleepiness (EDS) can be measured by the Epworth Sleepiness Scale (ESS) and has been shown to be prevalent in the United States. This study aimed to survey the levels of EDS in US adults and explore factors related to sleep hygiene. Methods An anonymous web-based survey was conducted, polling the frequency of hypersomnia symptoms, sleep quality, and time spent in their occupation. Respondents were at least 21 years of age and United States residents. Participants reported information related to age, gender, education, income, and race in addition to their responses to the survey questions. All data were analyzed using JMP 16.0. Results In our cohort of 200 adults, the median age was 40, with an interquartile range of 34-50 years. 48% were female. More than half of the cohort (53%) had severe or higher-normal EDS. Race (p=0.112), sex (p=0.426), age (p=0.063) shift work/shift timing (p=0.260), and screen time before bed (p=0.785) were not statistically significant for excessive daytime sleepiness. However, the length of participants' workdays (p=0.001) and their income levels (p=0.008) were found to be significantly associated with EDS. In other words, longer workdays and lower income levels were associated with an increased likelihood of falling asleep during inactive periods of the day. Conclusion Sleep deprivation and excessive daytime sleepiness are intertwined with sleep hygiene. This study highlights some of the possible issues that could lead to potential solutions.
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Affiliation(s)
- Lindsey Yared
- Biology, Trinity Preparatory School, Winter Park, USA
| | | | - Rohan Mangal
- Medicine, University of Miami Miller School of Medicine, Miami, USA
| | - Thor S Stead
- Medicine, The Warren Alpert Medical School of Brown University, Providence, USA
| | - Latha Ganti
- Medical Sciences, The Warren Alpert Medical School of Brown University, Providence, USA
- Emergency Medicine and Neurology, University of Central Florida College of Medicine, Orlando, USA
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14
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Singh S, Keller PR, Busija L, McMillan P, Makrai E, Lawrenson JG, Hull CC, Downie LE. Blue-light filtering spectacle lenses for visual performance, sleep, and macular health in adults. Cochrane Database Syst Rev 2023; 8:CD013244. [PMID: 37593770 PMCID: PMC10436683 DOI: 10.1002/14651858.cd013244.pub2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
BACKGROUND 'Blue-light filtering', or 'blue-light blocking', spectacle lenses filter ultraviolet radiation and varying portions of short-wavelength visible light from reaching the eye. Various blue-light filtering lenses are commercially available. Some claims exist that they can improve visual performance with digital device use, provide retinal protection, and promote sleep quality. We investigated clinical trial evidence for these suggested effects, and considered any potential adverse effects. OBJECTIVES To assess the effects of blue-light filtering lenses compared with non-blue-light filtering lenses, for improving visual performance, providing macular protection, and improving sleep quality in adults. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL; containing the Cochrane Eyes and Vision Trials Register; 2022, Issue 3); Ovid MEDLINE; Ovid Embase; LILACS; the ISRCTN registry; ClinicalTrials.gov and WHO ICTRP, with no date or language restrictions. We last searched the electronic databases on 22 March 2022. SELECTION CRITERIA We included randomised controlled trials (RCTs), involving adult participants, where blue-light filtering spectacle lenses were compared with non-blue-light filtering spectacle lenses. DATA COLLECTION AND ANALYSIS Primary outcomes were the change in visual fatigue score and critical flicker-fusion frequency (CFF), as continuous outcomes, between baseline and one month of follow-up. Secondary outcomes included best-corrected visual acuity (BCVA), contrast sensitivity, discomfort glare, proportion of eyes with a pathological macular finding, colour discrimination, proportion of participants with reduced daytime alertness, serum melatonin levels, subjective sleep quality, and patient satisfaction with their visual performance. We evaluated findings related to ocular and systemic adverse effects. We followed standard Cochrane methods for data extraction and assessed risk of bias using the Cochrane Risk of Bias 1 (RoB 1) tool. We used GRADE to assess the certainty of the evidence for each outcome. MAIN RESULTS We included 17 RCTs, with sample sizes ranging from five to 156 participants, and intervention follow-up periods from less than one day to five weeks. About half of included trials used a parallel-arm design; the rest adopted a cross-over design. A variety of participant characteristics was represented across the studies, ranging from healthy adults to individuals with mental health and sleep disorders. None of the studies had a low risk of bias in all seven Cochrane RoB 1 domains. We judged 65% of studies to have a high risk of bias due to outcome assessors not being masked (detection bias) and 59% to be at high risk of bias of performance bias as participants and personnel were not masked. Thirty-five per cent of studies were pre-registered on a trial registry. We did not perform meta-analyses for any of the outcome measures, due to lack of available quantitative data, heterogenous study populations, and differences in intervention follow-up periods. There may be no difference in subjective visual fatigue scores with blue-light filtering lenses compared to non-blue-light filtering lenses, at less than one week of follow-up (low-certainty evidence). One RCT reported no difference between intervention arms (mean difference (MD) 9.76 units (indicating worse symptoms), 95% confidence interval (CI) -33.95 to 53.47; 120 participants). Further, two studies (46 participants, combined) that measured visual fatigue scores reported no significant difference between intervention arms. There may be little to no difference in CFF with blue-light filtering lenses compared to non-blue-light filtering lenses, measured at less than one day of follow-up (low-certainty evidence). One study reported no significant difference between intervention arms (MD - 1.13 Hz lower (indicating poorer performance), 95% CI - 3.00 to 0.74; 120 participants). Another study reported a less negative change in CFF (indicating less visual fatigue) with high- compared to low-blue-light filtering and no blue-light filtering lenses. Compared to non-blue-light filtering lenses, there is probably little or no effect with blue-light filtering lenses on visual performance (BCVA) (MD 0.00 logMAR units, 95% CI -0.02 to 0.02; 1 study, 156 participants; moderate-certainty evidence), and unknown effects on daytime alertness (2 RCTs, 42 participants; very low-certainty evidence); uncertainty in these effects was due to lack of available data and the small number of studies reporting these outcomes. We do not know if blue-light filtering spectacle lenses are equivalent or superior to non-blue-light filtering spectacle lenses with respect to sleep quality (very low-certainty evidence). Inconsistent findings were evident across six RCTs (148 participants); three studies reported a significant improvement in sleep scores with blue-light filtering lenses compared to non-blue-light filtering lenses, and the other three studies reported no significant difference between intervention arms. We noted differences in the populations across studies and a lack of quantitative data. Device-related adverse effects were not consistently reported (9 RCTs, 333 participants; low-certainty evidence). Nine studies reported on adverse events related to study interventions; three studies described the occurrence of such events. Reported adverse events related to blue-light filtering lenses were infrequent, but included increased depressive symptoms, headache, discomfort wearing the glasses, and lower mood. Adverse events associated with non-blue-light filtering lenses were occasional hyperthymia, and discomfort wearing the spectacles. We were unable to determine whether blue-light filtering lenses affect contrast sensitivity, colour discrimination, discomfort glare, macular health, serum melatonin levels or overall patient visual satisfaction, compared to non-blue-light filtering lenses, as none of the studies evaluated these outcomes. AUTHORS' CONCLUSIONS This systematic review found that blue-light filtering spectacle lenses may not attenuate symptoms of eye strain with computer use, over a short-term follow-up period, compared to non-blue-light filtering lenses. Further, this review found no clinically meaningful difference in changes to CFF with blue-light filtering lenses compared to non-blue-light filtering lenses. Based on the current best available evidence, there is probably little or no effect of blue-light filtering lenses on BCVA compared with non-blue-light filtering lenses. Potential effects on sleep quality were also indeterminate, with included trials reporting mixed outcomes among heterogeneous study populations. There was no evidence from RCT publications relating to the outcomes of contrast sensitivity, colour discrimination, discomfort glare, macular health, serum melatonin levels, or overall patient visual satisfaction. Future high-quality randomised trials are required to define more clearly the effects of blue-light filtering lenses on visual performance, macular health and sleep, in adult populations.
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Affiliation(s)
- Sumeer Singh
- Department of Optometry and Vision Sciences, The University of Melbourne, Melbourne, Australia
| | - Peter R Keller
- Department of Optometry and Vision Sciences, The University of Melbourne, Melbourne, Australia
| | - Ljoudmila Busija
- Biostatistics Unit, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Patrick McMillan
- Department of Optometry and Vision Sciences, The University of Melbourne, Melbourne, Australia
| | - Eve Makrai
- Department of Optometry and Vision Sciences, The University of Melbourne, Melbourne, Australia
| | - John G Lawrenson
- Centre for Applied Vision Research, School of Health Sciences, City University of London, London, UK
| | - Christopher C Hull
- Centre for Applied Vision Research, School of Health Sciences, City University of London, London, UK
| | - Laura E Downie
- Department of Optometry and Vision Sciences, The University of Melbourne, Melbourne, Australia
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15
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Nagata JM, Singh G, Yang JH, Smith N, Kiss O, Ganson KT, Testa A, Jackson DB, Baker FC. Bedtime screen use behaviors and sleep outcomes: Findings from the Adolescent Brain Cognitive Development (ABCD) Study. Sleep Health 2023; 9:497-502. [PMID: 37098449 PMCID: PMC10823798 DOI: 10.1016/j.sleh.2023.02.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 02/14/2023] [Accepted: 02/17/2023] [Indexed: 04/27/2023]
Abstract
OBJECTIVES To determine associations between bedtime screen time behaviors and sleep outcomes in a national study of early adolescents. METHODS We analyzed cross-sectional data from 10,280 early adolescents aged 10-14 (48.8% female) in the Adolescent Brain Cognitive Development Study (Year 2, 2018-2020). Regression analyses examined the association between self-reported bedtime screen use and self- and caregiver-reported sleep measures, including sleep disturbance symptoms, controlling for sex, race/ethnicity, household income, parent education, depression, data collection period (pre- vs. during COVID-19 pandemic), and study site. RESULTS Overall, 16% of adolescents had at least some trouble falling or staying asleep in the past 2 weeks and 28% had overall sleep disturbance, based on caregiver reports. Adolescents who had a television or an Internet-connected electronic device in the bedroom had a greater risk of having trouble falling or staying asleep (adjusted risk ratio 1.27, 95% CI 1.12-1.44) and overall sleep disturbance (adjusted risk ratio 1.15, 95% CI 1.06-1.25). Adolescents who left their phone ringer activated overnight had more trouble falling/staying asleep and greater overall sleep disturbance compared to those who turned off their cell phones at bedtime. Streaming movies, playing video games, listening to music, talking/texting on the phone, and using social media or chat rooms were all associated with trouble falling/staying asleep and sleep disturbance. CONCLUSIONS Several bedtime screen use behaviors are associated with sleep disturbances in early adolescents. The study's findings can inform guidance for specific bedtime screen behaviors among early adolescents.
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Affiliation(s)
- Jason M Nagata
- Division of Adolescent and Young Adult Medicine, Department of Pediatrics, University of California, San Francisco, California, USA.
| | - Gurbinder Singh
- Division of Adolescent and Young Adult Medicine, Department of Pediatrics, University of California, San Francisco, California, USA
| | - Joanne H Yang
- Division of Adolescent and Young Adult Medicine, Department of Pediatrics, University of California, San Francisco, California, USA
| | - Natalia Smith
- Division of Adolescent and Young Adult Medicine, Department of Pediatrics, University of California, San Francisco, California, USA
| | - Orsolya Kiss
- Center for Health Sciences, SRI International, Menlo Park, California, USA
| | - Kyle T Ganson
- Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, Ontario, Canada
| | - Alexander Testa
- Department of Management, Policy and Community Health, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Dylan B Jackson
- Department of Population, Family, and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Fiona C Baker
- Center for Health Sciences, SRI International, Menlo Park, California, USA; School of Physiology, University of the Witwatersrand, Johannesburg, South Africa
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El-Osta A, Sasco ER, Barbanti E, Webber I, Alaa A, Karki M, Asmar MLE, Idriss H, Almadi M, Massoud F, Alboksmaty A, Majeed A. Tools for measuring individual self-care capability: a scoping review. BMC Public Health 2023; 23:1312. [PMID: 37422637 PMCID: PMC10329804 DOI: 10.1186/s12889-023-16194-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 06/26/2023] [Indexed: 07/10/2023] Open
Abstract
BACKGROUND Our ability to self-care can play a crucial role in the prevention, management and rehabilitation of diverse conditions, including chronic non-communicable diseases. Various tools have been developed to support the measurement of self-care capabilities of healthy individuals, those experiencing everyday self-limiting conditions, or one or more multiple long-term conditions. We sought to characterise the various non-mono-disease specific self-care measurement tools for adults as such a review was lacking. OBJECTIVE The aim of the review was to identify and characterise the various non-mono-disease specific self-care measurement tools for adults. Secondary objectives were to characterise these tools in terms of their content, structure and psychometric properties. DESIGN Scoping review with content assessment. METHODS The search was conducted in Embase, PubMed, PsycINFO and CINAHL databases using a variety of MeSH terms and keywords covering 1 January 1950 to 30 November 2022. Inclusion criteria included tools assessing health literacy, capability and/or performance of general health self-care practices and targeting adults. We excluded tools targeting self-care in the context of disease management only or indicated to a specific medical setting or theme. We used the Seven Pillars of Self-Care framework to inform the qualitative content assessment of each tool. RESULTS We screened 26,304 reports to identify 38 relevant tools which were described in 42 primary reference studies. Descriptive analysis highlighted a temporal shift in the overall emphasis from rehabilitation-focused to prevention-focused tools. The intended method of administration also transitioned from observe-and-interview style methods to the utilisation of self-reporting tools. Only five tools incorporated questions relevant to the seven pillars of self-care. CONCLUSIONS Various tools exist to measure individual self-care capability, but few consider assessing capability against all seven pillars of self-care. There is a need to develop a comprehensive, validated tool and easily accessible tool to measure individual self-care capability including the assessment of a wide range of self-care practices. Such a tool could be used to inform targeted health and social care interventions.
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Affiliation(s)
- Austen El-Osta
- Self-Care Academic Research Unit (SCARU), Department of Primary Care & Public Health, School of Public Health, Imperial College London, Charing Cross Hospital, 323 Reynolds BuildingSt Dunstan’s Road, London, W6 8RP UK
| | - Eva Riboli Sasco
- Self-Care Academic Research Unit (SCARU), Department of Primary Care & Public Health, School of Public Health, Imperial College London, Charing Cross Hospital, 323 Reynolds BuildingSt Dunstan’s Road, London, W6 8RP UK
| | - Evelina Barbanti
- Self-Care Academic Research Unit (SCARU), Department of Primary Care & Public Health, School of Public Health, Imperial College London, Charing Cross Hospital, 323 Reynolds BuildingSt Dunstan’s Road, London, W6 8RP UK
| | - Iman Webber
- Self-Care Academic Research Unit (SCARU), Department of Primary Care & Public Health, School of Public Health, Imperial College London, Charing Cross Hospital, 323 Reynolds BuildingSt Dunstan’s Road, London, W6 8RP UK
| | - Aos Alaa
- Self-Care Academic Research Unit (SCARU), Department of Primary Care & Public Health, School of Public Health, Imperial College London, Charing Cross Hospital, 323 Reynolds BuildingSt Dunstan’s Road, London, W6 8RP UK
| | - Manisha Karki
- Self-Care Academic Research Unit (SCARU), Department of Primary Care & Public Health, School of Public Health, Imperial College London, Charing Cross Hospital, 323 Reynolds BuildingSt Dunstan’s Road, London, W6 8RP UK
| | - Marie line El Asmar
- Self-Care Academic Research Unit (SCARU), Department of Primary Care & Public Health, School of Public Health, Imperial College London, Charing Cross Hospital, 323 Reynolds BuildingSt Dunstan’s Road, London, W6 8RP UK
| | - Haitham Idriss
- Self-Care Academic Research Unit (SCARU), Department of Primary Care & Public Health, School of Public Health, Imperial College London, Charing Cross Hospital, 323 Reynolds BuildingSt Dunstan’s Road, London, W6 8RP UK
| | - Mashael Almadi
- Self-Care Academic Research Unit (SCARU), Department of Primary Care & Public Health, School of Public Health, Imperial College London, Charing Cross Hospital, 323 Reynolds BuildingSt Dunstan’s Road, London, W6 8RP UK
| | - Farah Massoud
- Self-Care Academic Research Unit (SCARU), Department of Primary Care & Public Health, School of Public Health, Imperial College London, Charing Cross Hospital, 323 Reynolds BuildingSt Dunstan’s Road, London, W6 8RP UK
| | - Ahmed Alboksmaty
- Self-Care Academic Research Unit (SCARU), Department of Primary Care & Public Health, School of Public Health, Imperial College London, Charing Cross Hospital, 323 Reynolds BuildingSt Dunstan’s Road, London, W6 8RP UK
| | - Azeem Majeed
- Self-Care Academic Research Unit (SCARU), Department of Primary Care & Public Health, School of Public Health, Imperial College London, Charing Cross Hospital, 323 Reynolds BuildingSt Dunstan’s Road, London, W6 8RP UK
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17
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Yoon J, Heo S, Lee H, Sul E, Han T, Kwon YJ. Feasibility and Efficacy of Morning Light Therapy for Adults with Insomnia: A Pilot, Randomized, Open-Label, Two-Arm Study. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1066. [PMID: 37374270 DOI: 10.3390/medicina59061066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/26/2023] [Accepted: 05/28/2023] [Indexed: 06/29/2023]
Abstract
Background and Objectives: Light therapy (LT) is used as an adjunctive treatment for sleep problems. This study evaluates the impact of LT on sleep quality and sleep-related parameters in patients with sleep disorders. Materials and Methods: We performed a pilot, randomized, open-label clinical trial. Fourteen patients aged 20-60 years with insomnia were randomized into the control and LT groups (1:1 ratio). The LT group was instructed to use a device that provides bright LT (6000 K, 380 lux, wavelength 480 nm) for at least 25 min before 09:00 a.m. for two weeks. A self-reported questionnaire was used to evaluate circadian preference, mood, and sleep-related parameters. We analyzed serum cortisol levels and clock genes' expression. Results: The Epworth Sleepiness Scale (ESS), insomnia severity index(ISI), and Pittsburgh Sleep Quality index(PSQI) were significantly improved within the LT group only after the two-week period. When comparing the two groups, only the change in ESS was significant (mean difference, control: -0.14 vs. LT: -1.43, p = 0.021) after adjusting for the baseline characteristics. There were no significant differences in serum cortisol or clock genes' expression. Conclusions: LT can improve daytime sleepiness in patients with sleep disorders; however, further well-designed studies are warranted to confirm its efficacy.
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Affiliation(s)
- Jihyun Yoon
- Department of Family Medicine, Korean University Anam Hospital, Seoul 02481, Republic of Korea
| | - Seokjae Heo
- Division of Biostatistics, Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Hyangkyu Lee
- College of Nursing, Mo-Im Kim Research Institute, Yonsei University, Seoul 03722, Republic of Korea
| | - Eungyeong Sul
- Department of Family Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Taehwa Han
- Health-IT Center, Yonsei University Severance Hospital, Seoul 03722, Republic of Korea
| | - Yu-Jin Kwon
- Department of Family Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
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18
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Wen P, Tan F, Wu M, Cai Q, Xu R, Zhang X, Wang Y, Li S, Lei M, Chen H, Khan MSA, Zou Q, Hu X. Proper use of light environments for mitigating the effects of COVID-19 and other prospective public health emergency lockdowns on sleep quality and fatigue in adolescents. Heliyon 2023; 9:e14627. [PMID: 37064435 PMCID: PMC10027303 DOI: 10.1016/j.heliyon.2023.e14627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 03/13/2023] [Accepted: 03/13/2023] [Indexed: 04/18/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) remains a public health emergency of international concern, and some countries still implement strict regional lockdowns. Further, the upcoming 2023 Asian Games and World University Games will implement a closed-loop management system. Quarantine can harm mental and physical health, to which adolescents are more vulnerable compared with adults. Previous studies indicated that light can affect our psychology and physiology, and adolescents were exposed to the artificial light environment in the evening during the lockdown. Thus, this study aimed to establish and assess appropriate residential light environments to mitigate the effects of lockdowns on sleep quality and fatigue in adolescents. The participants were 66 adolescents (12.15 ± 2.45 years of age) in a closed-loop management environment, who participated in a 28-day (7-day baseline, 21-day light intervention) randomized controlled trial of a light-emitting diode (LED) light intervention. The adolescents were exposed to different correlated color temperature (CCT) LED light environments (2000 K or 8000 K) for 1 h each evening. The results for self-reported daily sleep quality indicated that the low CCT LED light environment significantly improved sleep quality (p < 0.05), and the blood test results for serum urea and hemoglobin indicated that this environment also significantly reduced fatigue (p < 0.05) and moderately increased performance, compared to the high CCT LED light environment. These findings can serve as a springboard for further research that aims to develop interventions to reduce the effects of public health emergency lockdowns on mental and physical health in adolescents, and provide a reference for participants in the upcoming Asian Games and World University Games.
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Affiliation(s)
- Peijun Wen
- School of Physical Education, South China University of Technology, Guangzhou, 510641, China
| | - Fuyun Tan
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing, 100871, China
| | - Meng Wu
- Guangzhou Institute of Sport Science, Guangzhou, 510620, China
| | - Qijun Cai
- Guangzhou Institute of Sport Science, Guangzhou, 510620, China
| | - Ruiping Xu
- Guangzhou Institute of Sport Science, Guangzhou, 510620, China
| | - Xiaowen Zhang
- Guangzhou Institute of Sport Science, Guangzhou, 510620, China
| | - Yongzhi Wang
- Dongguan Institute of Optoelectronics, Peking University, Dongguan, 523808, China
| | - Shukun Li
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing, 100871, China
| | - Menglai Lei
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing, 100871, China
| | - Huanqing Chen
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing, 100871, China
| | - Muhammad Saddique Akbar Khan
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing, 100871, China
| | - Qihong Zou
- Center for MRI Research, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Xiaodong Hu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing, 100871, China
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19
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Swanson LM, Raglan GB. Circadian Interventions as Adjunctive Therapies to Cognitive-Behavioral Therapy for Insomnia. Sleep Med Clin 2023; 18:21-30. [PMID: 36764783 PMCID: PMC10015491 DOI: 10.1016/j.jsmc.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The circadian system plays a key role in the sleep-wake cycle. A mismatch between the behavioral timing of sleep and the circadian timing of sleepiness/alertness can contribute to insomnia. Patients who report primarily difficulty falling asleep or early morning awakenings may benefit from circadian interventions administered adjunctively to cognitive-behavioral therapy for insomnia. Specific circadian interventions that clinicians may consider include bright light therapy, scheduled dim light, blue-blocking glasses, and melatonin. Implementation of these interventions differs depending on the patient's insomnia subtype. Further, careful attention must be paid to the timing of these interventions to ensure they are administered correctly.
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Affiliation(s)
- Leslie M Swanson
- Department of Psychiatry, University of Michigan, 4250 Plymouth Road, Ann Arbor, MI 48105, USA.
| | - Greta B Raglan
- Department of Psychiatry, University of Michigan, 4250 Plymouth Road, Ann Arbor, MI 48105, USA
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20
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Edgar DT, Beaven CM, Gill ND, Zaslona JL, Driller MW. Operation early-bird: Investigating altered light exposure in military barracks on sleep and performance-a placebo-controlled study. J Sleep Res 2023:e13837. [PMID: 36793180 DOI: 10.1111/jsr.13837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 10/31/2022] [Accepted: 12/07/2022] [Indexed: 02/17/2023]
Abstract
The manipulation of light exposure in the evening has been shown to modulate sleep, and may be beneficial in a military setting where sleep is reported to be problematic. This study investigated the efficacy of low-temperature lighting on objective sleep measures and physical performance in military trainees. Sixty-four officer-trainees (52 male/12 female, mean ± SD age: 25 ± 5 years) wore wrist-actigraphs for 6 weeks during military training to quantify sleep metrics. Trainee 2.4-km run time and upper-body muscular-endurance were assessed before and after the training course. Participants were randomly assigned to either: low-temperature lighting (LOW, n = 19), standard-temperature lighting with a placebo "sleep-enhancing" device (PLA, n = 17), or standard-temperature lighting (CON, n = 28) groups in their military barracks for the duration of the course. Repeated-measures ANOVAs were run to identify significant differences with post hoc analyses and effect size calculations performed where indicated. No significant interaction effect was observed for the sleep metrics; however, there was a significant effect of time for average sleep duration, and small benefits of LOW when compared with CON (d = 0.41-0.44). A significant interaction was observed for the 2.4-km run, with the improvement in LOW (Δ92.3 s) associated with a large improvement when compared with CON (Δ35.9 s; p = 0.003; d = 0.95 ± 0.60), but not PLA (Δ68.6 s). Similarly, curl-up improvement resulted in a moderate effect in favour of LOW (Δ14 repetitions) compared with CON (Δ6; p = 0.063; d = 0.68 ± 0.72). Chronic exposure to low-temperature lighting was associated with benefits to aerobic fitness across a 6-week training period, with minimal effects on sleep measures.
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Affiliation(s)
- David T Edgar
- Faculty of Health, University of Waikato, Hamilton, New Zealand.,New Zealand Defence Force, Wellington, New Zealand
| | - C Martyn Beaven
- Faculty of Health, University of Waikato, Hamilton, New Zealand
| | - Nicholas D Gill
- Faculty of Health, University of Waikato, Hamilton, New Zealand
| | | | - Matthew W Driller
- Faculty of Health, University of Waikato, Hamilton, New Zealand.,Sport, Performance, and Nutrition Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia
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21
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Meléndez-Fernández OH, Liu JA, Nelson RJ. Circadian Rhythms Disrupted by Light at Night and Mistimed Food Intake Alter Hormonal Rhythms and Metabolism. Int J Mol Sci 2023; 24:3392. [PMID: 36834801 PMCID: PMC9963929 DOI: 10.3390/ijms24043392] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/04/2023] [Accepted: 02/07/2023] [Indexed: 02/10/2023] Open
Abstract
Availability of artificial light and light-emitting devices have altered human temporal life, allowing 24-hour healthcare, commerce and production, and expanding social life around the clock. However, physiology and behavior that evolved in the context of 24 h solar days are frequently perturbed by exposure to artificial light at night. This is particularly salient in the context of circadian rhythms, the result of endogenous biological clocks with a rhythm of ~24 h. Circadian rhythms govern the temporal features of physiology and behavior, and are set to precisely 24 h primarily by exposure to light during the solar day, though other factors, such as the timing of meals, can also affect circadian rhythms. Circadian rhythms are significantly affected by night shift work because of exposure to nocturnal light, electronic devices, and shifts in the timing of meals. Night shift workers are at increased risk for metabolic disorder, as well as several types of cancer. Others who are exposed to artificial light at night or late mealtimes also show disrupted circadian rhythms and increased metabolic and cardiac disorders. It is imperative to understand how disrupted circadian rhythms alter metabolic function to develop strategies to mitigate their negative effects. In this review, we provide an introduction to circadian rhythms, physiological regulation of homeostasis by the suprachiasmatic nucleus (SCN), and SCN-mediated hormones that display circadian rhythms, including melatonin and glucocorticoids. Next, we discuss circadian-gated physiological processes including sleep and food intake, followed by types of disrupted circadian rhythms and how modern lighting disrupts molecular clock rhythms. Lastly, we identify how disruptions to hormones and metabolism can increase susceptibility to metabolic syndrome and risk for cardiovascular diseases, and discuss various strategies to mitigate the harmful consequences associated with disrupted circadian rhythms on human health.
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22
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Kulikowski K, Przytuła S, Sułkowski Ł, Rašticová M. Technostress of students during COVID-19 - a sign of the time? HUMAN TECHNOLOGY 2022. [DOI: 10.14254/1795-6889.2022.18-3.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
University students are considered digital natives but they often have difficulties in the effective integration of information technology (IT) into their study routine. To unravel this puzzle we proposed a model of IT effects on students' well-being, based on the Job Demands-Resources theory, one of the most widely used models of human well-being in organizational contexts. We described three processes affecting students’ well-being. A techno-stress process generates strain via an increase in study demands. A techno-enrichment process sparks motivation through the creation of energizing study techno-resources. A dual-nature techno-challenge process sparks motivation but also creates strain. Our elaboration might help to reconcile conflicting findings on the role of IT in remote learning and contribute to a better understanding of the effect of IT on students. The proposed theoretical model might also spark further empirical research and provide guidelines for research on IT use in university learning.
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23
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Cupertino MDC, Guimarães BT, Pimenta JFG, Almeida LVLD, Santana LN, Ribeiro TA, Santana YN. LIGHT POLLUTION: a systematic review about the impacts of artificial light on human health. BIOL RHYTHM RES 2022. [DOI: 10.1080/09291016.2022.2151763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marli Do Carmo Cupertino
- Medical School, Faculdade Dinâmica do Vale do Piranga, Ponte Nova, Brazil
- Laboratory of Epidemiological and Computational Methods in Health, Department of Medicine, and Nursing, Universidade Federal de Viçosa, Viçosa, Brazil
| | | | | | | | | | | | - Yuri Nunes Santana
- Medical School, Faculdade Dinâmica do Vale do Piranga, Ponte Nova, Brazil
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24
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Nowak M, Rachubińska K, Starczewska M, Kupcewicz E, Szylińska A, Cymbaluk-Płoska A, Grochans E. Correlations between Problematic Mobile Phone Use and Depressiveness and Daytime Sleepiness, as Well as Perceived Social Support in Adolescents. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13549. [PMID: 36294125 PMCID: PMC9603194 DOI: 10.3390/ijerph192013549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/10/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
(1) The aim of this study was to estimate the scale of mobile phone addiction among young adults as well as to establish whether the low level of perceived social support is related to problematic smartphone use, and whether an addictive pattern of mobile phone use is related to the prevalence of depressiveness and excessive daytime sleepiness. (2) The study was carried out using the diagnostic poll method via the questionnaire technique. Both the author's own questionnaire and the following standardized research tools were used: the Mobile Phone Problem Use Scale for Adolescents (MPPUSA), the Beck Depression Inventory (BDI), the Epworth Sleepiness Scale (ESS), and the Multidimensional Scale of Perceived Social Support (MSPSS). (3) Perceived social support was significantly lower in the group of respondents who problematically used their mobile phones in comparison with the ones who used them in a proper way. Severity of depressive symptoms and daytime sleepiness was significantly higher in respondents addicted to their mobiles compared to nonaddicted ones. (4) Conclusions: An important correlation between phone addiction and the prevalence of depressive symptoms and excessive daytime sleepiness exists. Problematic mobile phone use concerns individuals with low levels of perceived social support.
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Affiliation(s)
- Marta Nowak
- Department of Nursing, Faculty of Health Sciences, Pomeranian Medical University, Żołnierska 48, 71-210 Szczecin, Poland
| | - Kamila Rachubińska
- Department of Nursing, Faculty of Health Sciences, Pomeranian Medical University, Żołnierska 48, 71-210 Szczecin, Poland
| | - Małgorzata Starczewska
- Department of Nursing, Faculty of Health Sciences, Pomeranian Medical University, Żołnierska 48, 71-210 Szczecin, Poland
| | - Ewa Kupcewicz
- Department of Nursing, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 14 C Zolnierska Street, 10-719 Olsztyn, Poland
| | - Aleksandra Szylińska
- Department of Medical Rehabilitation and Clinical Physiotherapy, Pomeranian Medical University, Żołnierska 54, 71-210 Szczecin, Poland
| | - Aneta Cymbaluk-Płoska
- Department of Gynecological Surgery and Gynecological Oncology of Adults and Adolescents, Pomeranian Medical University, 70-111 Szczecin, Poland
| | - Elżbieta Grochans
- Department of Nursing, Faculty of Health Sciences, Pomeranian Medical University, Żołnierska 48, 71-210 Szczecin, Poland
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25
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Hailu Tesfaye A, Alemayehu M, Abere G, Kabito GG. Risk factors for the prevalence of poor sleep quality in lecturers during COVID-19 pandemic in Ethiopia: an institution-based cross-sectional study. BMJ Open 2022; 12:e066024. [PMID: 36198464 PMCID: PMC9534775 DOI: 10.1136/bmjopen-2022-066024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE This study was conducted to assess the prevalence and risk factors of poor sleep quality (SQ) among the academic staff at the University of Gondar, Northwestern Ethiopia. DESIGN An institution-based cross-sectional study was conducted from March to April 2021. A validated, self-administered, standardised Pittsburgh Sleep Quality Index (PSQI) was used to quantify the amount of self-reported poor SQ. The collected data were entered into EpiData V.4.6 and analysed using Stata V.14 software. Binary logistic regressions were computed to determine the association between variables. The association was determined using an adjusted OR (AOR) with a 95% CI at a p value of <0.05. SETTING The study was conducted at the University of Gondar, Northwestern Ethiopia. PARTICIPANTS A total of 607 lecturers participated in this study. OUTCOME MEASURES The primary outcome is the prevalence of poor SQ, which was measured using the PSQI. RESULTS Overall response rate was 95.60% (N=607). The age of the participants ranges from 21 to 70 with a mean of 32.39 (SD±6.80) years. The magnitude of poor SQ during the COVID-19 pandemic in the last month was 60.30% (95% CI (56.28% to 64.21%)). Working greater than 10 hours per day (AOR=2.19, 95% CI (1.16 to 4.27)), electronic device use before bedtime (AOR=1.53, 95% CI (1.04 to 2.27)), high-risk perception of COVID-19 infections (AOR=1.60, 95% CI (1.04 to 2.46)) and perceived job stress (AOR=2.15 (95% CI (1.50 to 3.08)) were risk factors for poor SQ. CONCLUSION The study revealed that the prevalence of poor SQ was high during the COVID-19 pandemic. The finding highlights the importance of optimising the working hours per day, minimising electronic device use before bedtime, promoting risk perception toward COVID-19 infection and developing workplace coping strategies for stress, which play a substantial role in minimising poor SQ.
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Affiliation(s)
- Amensisa Hailu Tesfaye
- Environmental and Occupational Health and Safety, Institute of Public Health, University of Gondar College of Medicine and Health Sciences, Gondar, Ethiopia
| | - M Alemayehu
- Environmental and Occupational Health and Safety, Institute of Public Health, University of Gondar College of Medicine and Health Sciences, Gondar, Ethiopia
| | - Giziew Abere
- Environmental and Occupational Health and Safety, Institute of Public Health, University of Gondar College of Medicine and Health Sciences, Gondar, Ethiopia
| | - Gebisa Guyasa Kabito
- Environmental and Occupational Health and Safety, Institute of Public Health, University of Gondar College of Medicine and Health Sciences, Gondar, Ethiopia
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26
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Cheng K, Martin LF, Calligaro H, Patwardhan A, Ibrahim MM. Case Report: Green Light Exposure Relieves Chronic Headache Pain in a Colorblind Patient. Clin Med Insights Case Rep 2022; 15:11795476221125164. [PMID: 36159182 PMCID: PMC9493681 DOI: 10.1177/11795476221125164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 08/22/2022] [Indexed: 11/25/2022] Open
Abstract
Patients with chronic headaches sometimes prefer non-pharmacological methods for
pain management. We have shown previously that green light exposure (GLED, Green
Light Emitting Diode) reversed thermal hyperalgesia and mechanical allodynia in
a rat model of neuropathic pain. This effect is mediated through the visual
system. Moreover, we recently showed that GLED was effective in decreasing the
severity of headache pain and the number of headache-days per month in migraine
patients. The visual system is comprised of image-forming and non-image-forming
pathways; however, the contribution of different photosensitive cells to the
effect of GLED is not yet known. Here, we report a 66-year-old man with
headaches attributed to other disorders of homeostasis and color blindness who
was recruited in the GLED study. The subject, diagnosed with protanomaly, cannot
differentiate green, yellow, orange, and red colors. After completing the GLED
exposure protocol, the subject noted significant decreases in headache pain
intensity without reduction in the number of headache-days per month. The
subject also reported improvement in the quality of his sleep. These findings
suggest that green light therapy mediates the decrease of the headache pain
intensity through non-image-forming intrinsically photosensitive retinal
ganglion cells. However, the subject did not report a change in the frequency of
his headaches, suggesting the involvement of cones in reduction of headache
frequency by GLED. This is the first case reported of a colorblind man with
chronic headache using GLED to manage his headache pain and may increase our
understanding of the contribution of different photosensitive cells in mediating
the pain-relieving effects of GLED.
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Affiliation(s)
- Kevin Cheng
- Department of Anesthesiology, College of Medicine, University of Arizona, Tucson, AZ, USA.,Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA
| | - Laurent F Martin
- Department of Anesthesiology, College of Medicine, University of Arizona, Tucson, AZ, USA.,Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA
| | - Hugo Calligaro
- Regulatory Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Amol Patwardhan
- Department of Anesthesiology, College of Medicine, University of Arizona, Tucson, AZ, USA.,Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA.,Department of Neurosurgery, College of Medicine, University of Arizona, Tucson, AZ, USA.,Comprehensive Pain and Addiction Center, The University of Arizona, Tucson, AZ, USA
| | - Mohab M Ibrahim
- Department of Anesthesiology, College of Medicine, University of Arizona, Tucson, AZ, USA.,Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA.,Department of Neurosurgery, College of Medicine, University of Arizona, Tucson, AZ, USA.,Comprehensive Pain and Addiction Center, The University of Arizona, Tucson, AZ, USA
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27
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Minich DM, Henning M, Darley C, Fahoum M, Schuler CB, Frame J. Is Melatonin the "Next Vitamin D"?: A Review of Emerging Science, Clinical Uses, Safety, and Dietary Supplements. Nutrients 2022; 14:3934. [PMID: 36235587 PMCID: PMC9571539 DOI: 10.3390/nu14193934] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/17/2022] Open
Abstract
Melatonin has become a popular dietary supplement, most known as a chronobiotic, and for establishing healthy sleep. Research over the last decade into cancer, Alzheimer's disease, multiple sclerosis, fertility, PCOS, and many other conditions, combined with the COVID-19 pandemic, has led to greater awareness of melatonin because of its ability to act as a potent antioxidant, immune-active agent, and mitochondrial regulator. There are distinct similarities between melatonin and vitamin D in the depth and breadth of their impact on health. Both act as hormones, affect multiple systems through their immune-modulating, anti-inflammatory functions, are found in the skin, and are responsive to sunlight and darkness. In fact, there may be similarities between the widespread concern about vitamin D deficiency as a "sunlight deficiency" and reduced melatonin secretion as a result of "darkness deficiency" from overexposure to artificial blue light. The trend toward greater use of melatonin supplements has resulted in concern about its safety, especially higher doses, long-term use, and application in certain populations (e.g., children). This review aims to evaluate the recent data on melatonin's mechanisms, its clinical uses beyond sleep, safety concerns, and a thorough summary of therapeutic considerations concerning dietary supplementation, including the different formats available (animal, synthetic, and phytomelatonin), dosing, timing, contraindications, and nutrient combinations.
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Affiliation(s)
- Deanna M. Minich
- Department of Human Nutrition and Functional Medicine, University of Western States, Portland, OR 97213, USA
| | - Melanie Henning
- Department of Sports and Performance Psychology, University of the Rockies, Denver, CO 80202, USA
| | - Catherine Darley
- College of Naturopathic Medicine, National University of Natural Medicine, Portland, OR 97201, USA
| | - Mona Fahoum
- School of Naturopathic Medicine, Bastyr University, Kenmore, WA 98028, USA
| | - Corey B. Schuler
- School of Nutrition, Sonoran University of Health Sciences, Tempe, AZ 85282, USA
- Department of Online Education, Northeast College of Health Sciences, Seneca Falls, NY 13148, USA
| | - James Frame
- Natural Health International Pty., Ltd., Sydney, NSW 2000, Australia
- Symphony Natural Health, Inc., West Valley City, UT 84119, USA
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28
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Ng CM, Kaur S. Environmental light exposure and mealtime regularity: Implications for human health. Chronobiol Int 2022; 39:1183-1194. [PMID: 35786074 DOI: 10.1080/07420528.2022.2093212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Light exposure and mealtime act as cues to the human circadian rhythm, which subsequently regulates various physiological functions in the body. However, modernization alters lifestyles, with changes to social and work-related activities independent of the natural light-dark cycle. This review summarizes the role of light exposure and regular mealtime on bodily processes and, ultimately, metabolic health. Various aspects of light are reviewed, including the type of light (natural/artificial), intensity (lux), spectral composition, time of exposure (night/day), and exposure duration. Further, the possible relationship between light exposure and mealtime irregularity is discussed as a function affecting metabolic health. In essence, research evidence suggests that mealtime regularity and light exposure habits based on the natural occurring light-dark cycle are essential for metabolic health in relation to an aligned circadian rhythm.
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Affiliation(s)
- Choon Ming Ng
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - Satvinder Kaur
- Faculty of Applied Sciences, UCSI University, Cheras, Kuala Lumpur, Malaysia
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29
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Maria Francis Y, Sankaran PK, Kirthika CP, Karunakaran B, Sathish Kumar S, Karthikeyan D, Krishnan M, Babu S. Views on virtual education during the COVID-19 pandemic among medical and paramedical students in India. Bioinformation 2022; 18:518-524. [PMID: 37168794 PMCID: PMC10165041 DOI: 10.6026/97320630018518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/30/2022] [Accepted: 06/30/2022] [Indexed: 11/23/2022] Open
Abstract
The COVID-19 pandemic has made the educational institutions to implement the mandatory virtual learning in medical education. It is undeniable that electronic gadget aided learning have a significant role to play during a pandemic. Both faculty and students are getting accustomed to this 'New Normalcy'. Therefore, it is of interest to determine the effectiveness and perception of virtual teaching and learning during the COVID 19 pandemic. A cross-sectional study was conducted in which 336 medical and 336 paramedical students of both the genders with age group of 17 - 21 years participated. The data obtained were analyzed using the SPSS software. The shift from class room teaching to virtual learning has led to many health issues among students such as eye strain, anxiety, depression, musculoskeletal problems and obesity. The students also had inadequate time to interact with faculties. Data shows that virtual learning an alternative mode to traditional method during a pandemic.
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Affiliation(s)
- Yuvaraj Maria Francis
- Department of Anatomy, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai- 602 105, India
| | - PK Sankaran
- Department of Anatomy, All India Institute of Medical Sciences, Mangalagiri -52008, Andhra Pradesh, India
| | - CP Kirthika
- Department of Anatomy, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai : 6000116, India
| | - Balaji Karunakaran
- Department of Anatomy, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai- 602 105, India
| | - S Sathish Kumar
- Department of Community Medicine, Vinayaka Missions Medical College and Hospital, Karaikal, Pondicherry, India
| | - D Karthikeyan
- Department of Microbiology, Vinayaka Missions Medical College and Hospital, Deemed university, Karaikal, Pondicherry, India
| | - Madhan Krishnan
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, chengalpattu- 603103 India
| | - Shyamaladevi Babu
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, chengalpattu- 603103 India
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30
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Rebello LJ, Roberts AW, Fenuta AM, Cote AT, Bodner ME. Sleep Quality and Sleep Behaviors in Varsity Athletes: A Pilot Study. Front Sports Act Living 2022; 4:906663. [PMID: 35813053 PMCID: PMC9256907 DOI: 10.3389/fspor.2022.906663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/17/2022] [Indexed: 12/03/2022] Open
Abstract
Sleep hygiene practices may hinder university athletes from obtaining quality sleep to support health and performance. We sought to provide a comprehensive evaluation of sleep quality and behaviors in varsity athletes using validated sleep questionnaires: the Athlete Sleep Screening Questionnaire (ASSQ) and the Athlete Sleep Behavior Questionnaire (ASBQ). Sixty-four (n = 64) athletes participated (54% female; 71% Caucasian). The mean age was 20.3 ± 1.7 years and the mean BMI was 23.3 ± 3.3. Fifty-one percent met the threshold for adequate sleep (7+ h) and 54% reported being somewhat/very satisfied with sleep quality. Global scores for ASSQ Sleep Difficulty and ASBQ sleep behaviors were significantly correlated (r = 0.31; p = 0.014) and not significantly different across age, academic year, or residence. According to the ASSQ, 11% and 24% were classified as having severe or moderate sleep problems, respectively. The ASBQ categorized 62% as having "poor" sleep behaviors. Notable sleep-influencing factors included a high frequency of emotional/cognitive processing of sport-performance issues (46.9%), frequent use of light-emitting devices before bed (90%), training after 7 pm (65%), and the use of sleep medication (19%). Half of the university athletes did not meet the thresholds for adequate sleep, and some may require a referral for clinical sleep issues. The majority of these athletes' sleep behaviors do not promote adequate sleep. The ASSQ shows utility to assess gradations in clinical sleep difficulty; the ASBQ could be used in concert with the ASSQ to discern "cognitive and physiological arousal" targets for use in educational workshops designed to promote optimal sleep hygiene in university athletes.
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Affiliation(s)
| | | | | | | | - Michael E. Bodner
- School of Human Kinetics, Trinity Western University, Langley, BC, Canada
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Evening light environments can be designed to consolidate and increase the duration of REM-sleep. Sci Rep 2022; 12:8719. [PMID: 35610265 PMCID: PMC9130237 DOI: 10.1038/s41598-022-12408-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 05/04/2022] [Indexed: 01/15/2023] Open
Abstract
Evening exposure to short-wavelength light has disruptive effects on circadian rhythms and sleep. These effects can be mitigated by blocking short-wavelength (blue) frequencies, which has led to the development of evening blue-depleted light environments (BDLEs). We have previously reported that residing 5 days in an evening BDLE, compared with residing in a normal indoor light environment of similar photopic lux, advances circadian rhythms and increases the duration of rapid eye movement (REM) sleep in a randomized cross-over trial with twelve healthy participants. The current study extends these findings by testing whether residing in the evening BDLE affects the consolidation and microstructure of REM sleep in the same sample. Evening BDLE significantly reduces the fragmentation of REM sleep (p = 0.0003), and REM sleep microarousals in (p = 0.0493) without significantly changing REM density or the latency to first REM sleep episode. Moreover, the increased accumulation of REM sleep is not at the expense of NREM stage 3 sleep. BDLE further has a unique effect on REM sleep fragmentation (p = 0.0479) over and above that of circadian rhythms phase-shift, indicating a non-circadian effect of BDLE. If these effects can be replicated in clinical populations, this may have a therapeutic potential in disorders characterized by fragmented REM sleep.
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Healthy Dwelling: Design of Biophilic Interior Environments Fostering Self-Care Practices for People Living with Migraines, Chronic Pain, and Depression. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19042248. [PMID: 35206441 PMCID: PMC8871637 DOI: 10.3390/ijerph19042248] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/11/2022] [Accepted: 02/13/2022] [Indexed: 12/22/2022]
Abstract
The benefits of biophilic interior design have been recognized by healthcare facilities, but residential environments receive relatively less attention with respect to improving the health of people living with chronic diseases. Recent “stay-at-home” restrictions due to the COVID-19 pandemic further emphasized the importance of creating interior spaces that directly and indirectly support physical and mental health. In this viewpoint article, we discuss opportunities for combining biophilic interventions with interior design, fostering disease-specific self-care. We provide examples of designing residential spaces integrating biophilic interventions, light therapy, relaxation opportunities, mindfulness meditation, listening to music, physical activities, aromatherapy, and quality sleep. These modalities can provide the clinical benefits of reducing migraine headaches and chronic pain, as well as improving depressive symptoms. The disease-specific interior environment can be incorporated into residential homes, workplaces, assisted-living residences, hospitals and hospital at home programs. This work aims to promote a cross-disciplinary dialogue towards combining biophilic design and advances in lifestyle medicine to create therapeutic interior environments and to improve healthcare outcomes.
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Liset R, Grønli J, Henriksen RE, Henriksen TEG, Nilsen RM, Pallesen S. A randomized controlled trial on the effects of blue-blocking glasses compared to partial blue-blockers on sleep outcomes in the third trimester of pregnancy. PLoS One 2022; 17:e0262799. [PMID: 35089982 PMCID: PMC8797219 DOI: 10.1371/journal.pone.0262799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 12/15/2021] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE Sleep disturbances are common in pregnancy. Blocking blue light has been shown to improve sleep and may be a suitable intervention for sleep problems during pregnancy. The present study investigated the effects of blue light blocking in the evening and during nocturnal awakenings among pregnant women on primary sleep outcomes in terms of total sleep time, sleep efficiency and mid-point of sleep. METHODS In a double-blind randomized controlled trial, 60 healthy nulliparous pregnant women in the beginning of the third trimester were included. They were randomized, using a random number generator, either to a blue-blocking glass intervention (n = 30) or to a control glass condition constituting partial blue-blocking effect (n = 30). Baseline data were recorded for one week and outcomes were recorded in the last of two intervention/control weeks. Sleep was measured by actigraphy, sleep diaries, the Bergen Insomnia Scale, the Karolinska Sleepiness Scale and the Pre-Sleep Arousal Scale. RESULTS The results on the primary outcomes showed no significant mean difference between the groups at posttreatment, neither when assessed with sleep diary; total sleep time (difference = .78[min], 95%CI = -19.7, 21.3), midpoint of sleep (difference = -8.9[min], 95%CI = -23.7, 5.9), sleep efficiency (difference = -.06[%], 95%CI = -1.9, 1.8) and daytime functioning (difference = -.05[score points], 95%CI = -.33, .22), nor by actigraphy; total sleep time (difference = 13.0[min], 95%CI = -9.5, 35.5), midpoint of sleep (difference = 2.1[min], 95%CI = -11.6, 15.8) and sleep efficiency (difference = 1.7[%], 95%CI = -.4, 3.7). On the secondary outcomes, the Bergen Insomnia Scale, the Karolinska Sleepiness Scale and the Pre-Sleep Arousal Scale the blue-blocking glasses no statistically significant difference between the groups were found. Transient side-effects were reported in both groups (n = 3). CONCLUSIONS The use of blue-blocking glasses compared to partially blue-blocking glasses in a group of healthy pregnant participants did not show statistically significant effects on sleep outcomes. Research on the effects of blue-blocking glasses for pregnant women with sleep-problems or circadian disturbances is warranted. TRIAL REGISTRATION The trial is registered at ClinicalTrials.gov (NCT03114072).
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Affiliation(s)
- Randi Liset
- Department of Psychosocial Science, Faculty of Psychology, University of Bergen, Bergen, Norway
| | - Janne Grønli
- Department of Biological and Medical Psychology, Faculty of Psychology, University of Bergen, Bergen, Norway
| | - Roger E. Henriksen
- Faculty of Health and Social Sciences, Western Norway University of Applied Sciences, Bergen, Norway
| | - Tone E. G. Henriksen
- Division of Mental Health Care, Fonna Local Health Authority, Valen Hospital, Valen, Norway
| | - Roy M. Nilsen
- Faculty of Health and Social Sciences, Western Norway University of Applied Sciences, Bergen, Norway
| | - Ståle Pallesen
- Department of Psychosocial Science, Faculty of Psychology, University of Bergen, Bergen, Norway
- Norwegian Competence Center for Sleep Disorders, Haukeland University Hospital, Bergen, Norway
- Optentia, The Vaal Triangle Campus of The North-West University, Vanderbijlpark, South-Africa
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Mason BJ, Tubbs AS, Fernandez FX, Grandner MA. Spectrophotometric properties of commercially available blue blockers across multiple lighting conditions. Chronobiol Int 2022; 39:653-664. [PMID: 34983271 PMCID: PMC9106867 DOI: 10.1080/07420528.2021.2021229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Lenses that filter short-wavelength ("blue") light are commercially marketed to improve sleep and circadian health. Despite their widespread use, minimal data are available regarding their comparative efficacy in curtailing blue light exposure while maintaining visibility. Fifty commercial lenses were evaluated using five light sources: a blue LED array, a computer tablet display, an incandescent lamp, a fluorescent overhead luminaire, and sunlight. Absolute irradiance was measured at baseline and for each lens across the visual spectrum (380-780 nm), which allowed calculation of percent transmission. Transmission specificity was also calculated to determine whether light transmission was predominantly circadian-proficient (455-560 nm) or non-proficient (380-454 nm and 561-780 nm). Lenses were grouped by tint and metrics were compared between groups. Red-tinted lenses exhibited the lowest transmission of circadian-proficient light, while reflective blue lenses had the highest transmission. Orange-tinted lenses transmitted similar circadian-proficient light as red-tinted lenses but transmitted more non-circadian-proficient light, resulting in higher transmission specificity. Orange-tinted lenses had the highest transmission specificity while limiting biologically active light exposure in ordinary lighting conditions. Glasses incorporating these lenses currently have the greatest potential to support circadian sleep-wake rhythms.
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Affiliation(s)
- Brooke J Mason
- Sleep and Health Research Program, Department of Psychiatry, University of Arizona College of Medicine - Tucson, Tucson, Arizona, USA
| | - Andrew S Tubbs
- Sleep and Health Research Program, Department of Psychiatry, University of Arizona College of Medicine - Tucson, Tucson, Arizona, USA
| | - Fabian-Xosé Fernandez
- Light Algorithms Laboratory, Department of Psychology, University of Arizona College of Science, Tucson, Arizona, USA
| | - Michael A Grandner
- Sleep and Health Research Program, Department of Psychiatry, University of Arizona College of Medicine - Tucson, Tucson, Arizona, USA
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Goddard A, Janicek E, Etcher L. Trauma-informed care for the pediatric nurse. J Pediatr Nurs 2022; 62:1-9. [PMID: 34798581 PMCID: PMC9757999 DOI: 10.1016/j.pedn.2021.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 10/29/2021] [Accepted: 11/05/2021] [Indexed: 11/15/2022]
Abstract
BACKGROUND Trauma is not limited to medical trauma and includes chronic stressors, toxic stress, adverse childhood events, abuse, and now the COVID-19 pandemic. Principles of trauma-informed care and resiliency guide pediatric nursing care across the life span from birth to adolescence. Trauma-informed care principles are pertinent to the nursing care needs of healthy and ill children from infancy to adolescence across care settings. METHODS The purpose of this integrative literature review (IRL) is to elucidate evidence-based practices for pediatric nurses specific to trauma, trauma-informed principles, and the integration of these principles to care. Using Whittemore and Knafl's (2005) methodology, this IRL presents empirical literature to operationalize trauma-informed care for the pediatric nurse through 1) identification of the problem; 2) literature search; 3) data evaluation; 4) data analysis; 5) result presentation. FINDINGS Results are presented in a contemporary framework by the Substance Abuse and Mental Health Services Administration (2018) of trauma-awareness for the pediatric nurse, trauma-informed principles, and the integration of these principles to care. Pediatric nurses are in a unique position to offer trauma-informed care by recognizing and managing trauma to include chronic stressors, toxic stress, adverse childhood experiences, and abuse. DISCUSSION Pediatric nurses today are caring for patients in a complex and diverse healthcare climate amid the world's worst public health pandemic in living memory. Awareness of trauma, assessment of trauma in pediatrics, and health and resiliency promotion are critical in moving forward post-pandemic. The overview of trauma-informed care provides a guide for the pediatric nurse.
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Affiliation(s)
- Anna Goddard
- Quality, Research, & Evaluation, School-Based Health Alliance, United States of America; Sacred Heart University, Davis & Henley College of Nursing, United States of America; Child and Family Agency of Southeastern Connecticut, United States of America.
| | - Erin Janicek
- Child and Family Agency of Southeastern Connecticut, United States of America.
| | - LuAnn Etcher
- Sacred Heart University, Davis & Henley College of Nursing, United States of America.
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Kemp C, Pienaar PR, Rosslee DT, Lipinska G, Roden LC, Rae DE. Sleep in Habitual Adult Video Gamers: A Systematic Review. Front Neurosci 2021; 15:781351. [PMID: 35095395 PMCID: PMC8797142 DOI: 10.3389/fnins.2021.781351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/24/2021] [Indexed: 11/13/2022] Open
Abstract
Video gaming is a popular, globally recognized phenomenon, played recreationally or competitively as esports. Gaming is a typically sedentary nighttime activity; therefore, the potential to impact sleep and health is high. Furthermore, there are limited studies on adult gamers, who represent the majority demographic in esports. This review examines evidence describing sleep in habitual adult gamers to understand the associated risk for cardiometabolic disease or the benefits to gaming performance. Three electronic databases (PubMed, Scopus, ISI Web of Science) were searched for peer-reviewed articles published between January 2000 - April 2020. Twelve studies reporting on sleep in habitual adult gamers were included. A narrative synthesis was employed to report results, owing to high levels of heterogeneity across the included studies. Gamers with higher gaming addiction scores were more likely to have shorter, poorer quality sleep and greater daytime sleepiness and insomnia scores than gamers with lower gaming addiction scores and non-gamers. In addition, high-volume gamers were more likely to have worsened sleep quantity and quality, with delayed sleep timing and increased prevalence of insomnia. Despite limitations in the design of the included studies, excessive gaming is broadly associated with worsened sleep parameters. Noteworthy is the lack of studies investigating cardiometabolic health in gamers. Future work should explore the relative contribution and associated risk that various games, genres, and timing of gaming activities have on sleep, physical and mental health, particularly in vulnerable gaming cohorts engaged with contemporary forms of gaming and esports.
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Affiliation(s)
- Chadley Kemp
- Health Through Physical Activity, Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Paula R. Pienaar
- Health Through Physical Activity, Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Department of Public and Occupational Health, Amsterdam UMC, Amsterdam Public Health Research Institute, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Dominique T. Rosslee
- Health Through Physical Activity, Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Gosia Lipinska
- Clinical Neuropsychology and Sleep Sciences, Department of Psychology, Faculty of Humanities, University of Cape Town, Cape Town, South Africa
| | - Laura C. Roden
- Health Through Physical Activity, Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Centre for Sport, Exercise and Life Sciences, Faculty of Health and Life Sciences, School of Life Sciences, Coventry University, Coventry, United Kingdom
| | - Dale E. Rae
- Health Through Physical Activity, Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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Cable J, Schernhammer E, Hanlon EC, Vetter C, Cedernaes J, Makarem N, Dashti HS, Shechter A, Depner C, Ingiosi A, Blume C, Tan X, Gottlieb E, Benedict C, Van Cauter E, St-Onge MP. Sleep and circadian rhythms: pillars of health-a Keystone Symposia report. Ann N Y Acad Sci 2021; 1506:18-34. [PMID: 34341993 PMCID: PMC8688158 DOI: 10.1111/nyas.14661] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 06/21/2021] [Indexed: 12/24/2022]
Abstract
The human circadian system consists of the master clock in the suprachiasmatic nuclei of the hypothalamus as well as in peripheral molecular clocks located in organs throughout the body. This system plays a major role in the temporal organization of biological and physiological processes, such as body temperature, blood pressure, hormone secretion, gene expression, and immune functions, which all manifest consistent diurnal patterns. Many facets of modern life, such as work schedules, travel, and social activities, can lead to sleep/wake and eating schedules that are misaligned relative to the biological clock. This misalignment can disrupt and impair physiological and psychological parameters that may ultimately put people at higher risk for chronic diseases like cancer, cardiovascular disease, and other metabolic disorders. Understanding the mechanisms that regulate sleep circadian rhythms may ultimately lead to insights on behavioral interventions that can lower the risk of these diseases. On February 25, 2021, experts in sleep, circadian rhythms, and chronobiology met virtually for the Keystone eSymposium "Sleep & Circadian Rhythms: Pillars of Health" to discuss the latest research for understanding the bidirectional relationships between sleep, circadian rhythms, and health and disease.
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Affiliation(s)
| | - Eva Schernhammer
- Department of Epidemiology, Center for Public Health, Medical University of Vienna, Vienna, Austria
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, and Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Erin C Hanlon
- Department of Medicine, Section of Endocrinology, Diabetes and Metabolism, University of Chicago, Chicago, Illinois
| | - Céline Vetter
- Department of Integrative Physiology, University of Colorado at Boulder, Boulder, Colorado
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Jonathan Cedernaes
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Nour Makarem
- Department of Epidemiology, Mailman School of Public Health, Columbia University Irving Medical Center, New York, New York
| | - Hassan S Dashti
- Department of Integrative Physiology, University of Colorado at Boulder, Boulder, Colorado
- Center for Genomic Medicine, Massachusetts General Hospital, and Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Ari Shechter
- Department of Medicine and Sleep Center of Excellence, Columbia University Irving Medical Center, New York, New York
| | - Christopher Depner
- Department of Health and Kinesiology, University of Utah, Salt Lake City, Utah
| | - Ashley Ingiosi
- Department of Biomedical Sciences, Elson S. Floyd College of Medicine, Washington State University, Spokane, Washington
| | - Christine Blume
- Centre for Chronobiology, Psychiatric Hospital of the University of Basel, and Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, Basel, Switzerland
| | - Xiao Tan
- Department of Neuroscience (Sleep Science, BMC), Uppsala University, Uppsala, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet, Solna, Sweden
| | - Elie Gottlieb
- The Florey Institute of Neuroscience and Mental Health, and University of Melbourne, Melbourne, Victoria, Australia
| | - Christian Benedict
- Department of Neuroscience (Sleep Science, BMC), Uppsala University, Uppsala, Sweden
| | - Eve Van Cauter
- Department of Medicine, Section of Endocrinology, Diabetes and Metabolism, University of Chicago, Chicago, Illinois
| | - Marie-Pierre St-Onge
- Sleep Center of Excellence, Columbia University Irving Medical Center, New York, New York
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Salfi F, Amicucci G, Corigliano D, D'Atri A, Viselli L, Tempesta D, Ferrara M. Changes of evening exposure to electronic devices during the COVID-19 lockdown affect the time course of sleep disturbances. Sleep 2021; 44:6270772. [PMID: 34037792 PMCID: PMC8194574 DOI: 10.1093/sleep/zsab080] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 03/11/2021] [Indexed: 12/23/2022] Open
Abstract
STUDY OBJECTIVES During the coronavirus disease 2019 (COVID-19) lockdown, there was a worldwide increase in electronic devices' daily usage. Prolonged exposure to backlit screens before sleep influences the circadian system leading to negative consequences on sleep health. We investigated the relationship between changes in evening screen exposure and the time course of sleep disturbances during the home confinement period due to COVID-19. METHODS 2,123 Italians (mean age ± standard deviation, 33.1 ± 11.6) were tested longitudinally during the third and the seventh week of lockdown. The web-based survey evaluated sleep quality and insomnia symptoms through the Pittsburgh Sleep Quality Index and the Insomnia Severity Index. The second assessment survey inquired about intervening changes in backlit screen exposure in the two hours before falling asleep. RESULTS Participants who increased electronic device usage showed decreased sleep quality, exacerbated insomnia symptoms, reduced sleep duration, prolonged sleep onset latency, and delayed bedtime and rising time. In this subgroup, the prevalence of poor sleepers and individuals reporting moderate/severe insomnia symptoms increased. Conversely, respondents reporting decreased screen exposure exhibited improved sleep quality and insomnia symptoms. In this subgroup, the prevalence of poor sleepers and moderate/severe insomniacs decreased. Respondents preserving screen time habits did not show variations of the sleep parameters. CONCLUSIONS Our investigation demonstrated a strong relationship between modifications of evening electronic device usage and time course of sleep disturbances during the lockdown period. Monitoring the potential impact of excessive evening exposure to backlit screens on sleep health is recommendable during the current period of restraining measures due to COVID-19.
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Affiliation(s)
- Federico Salfi
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Giulia Amicucci
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.,Department of Psychology, Sapienza University of Rome, Rome, Italy
| | - Domenico Corigliano
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Aurora D'Atri
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Lorenzo Viselli
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Daniela Tempesta
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Michele Ferrara
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
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Hester L, Dang D, Barker CJ, Heath M, Mesiya S, Tienabeso T, Watson K. Evening wear of blue-blocking glasses for sleep and mood disorders: a systematic review. Chronobiol Int 2021; 38:1375-1383. [PMID: 34030534 DOI: 10.1080/07420528.2021.1930029] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Blue-blocking glasses, also known as amber glasses, are plastic glasses that primarily block blue light. Blue-blocking glasses have been studied as a sleep intervention for insomnia, delayed sleep-phase disorder, shift work, jet lag, and nonpathologic sleep improvement. Blue-blocking glasses have also been studied as a treatment for bipolar disorder, major depression, and postpartum depression. Blue-blocking glasses improve sleep by inducing dim-light melatonin onset by reducing activation of intrinsically photosensitive retinal ganglion cells (ipRGCs) which are most sensitive to blue light and are a major input for circadian regulation; their mechanism for mood regulation is unclear but may be similar to that of dark therapy for bipolar disorder where patients are kept in darkness for an extended period every night. A systematic search of the scientific literature identified a total of 29 experimental publications involving evening wear of blue-blocking glasses for sleep or mood disorders. These consisted of 16 randomized controlled trials (RCTs) published in journals with a total of 453 patients, 5 uncontrolled trials, 1 case series, 1 case study, and 6 abstracts from conference proceedings. Only 1 case study and 1 RCT were for acutely manic patients but both found substantial decreases in manic symptoms with the use of blue-blocking glasses; these give preliminary clinical evidence of efficacy that makes blue-blocking glasses a high-yield intervention to study for bipolar disorder. Findings in the 3 publications for major depression and postpartum depression were heterogeneous and conflicting as to their efficacy. Out of the 24 publications focusing on sleep, there was substantial evidence for blue-blocking glasses being a successful intervention for reducing sleep onset latency in patients with sleep disorders, jet lag, or variable shift work schedules. Given the well-established biological mechanism and clinical research showing that blue-blocking glasses are effective for inducing sleep, they are a viable intervention to recommend to patients with insomnia or a delayed sleep phase.
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Affiliation(s)
- Landon Hester
- Department of Psychiatry and Behavioral Sciences, University of Oklahoma College of Medicine, Oklahoma City, Oklahoma, USA
| | - Deanna Dang
- Department of Psychiatry and Behavioral Sciences, University of Oklahoma College of Medicine, Oklahoma City, Oklahoma, USA
| | - Christopher J Barker
- Department of Psychiatry and Behavioral Sciences, University of Oklahoma College of Medicine, Oklahoma City, Oklahoma, USA
| | - Michael Heath
- Department of Psychiatry and Behavioral Sciences, University of Oklahoma College of Medicine, Oklahoma City, Oklahoma, USA
| | - Sidra Mesiya
- Department of Psychiatry and Behavioral Sciences, University of Oklahoma College of Medicine, Oklahoma City, Oklahoma, USA
| | - Tekenari Tienabeso
- Department of Psychiatry and Behavioral Sciences, University of Oklahoma College of Medicine, Oklahoma City, Oklahoma, USA
| | - Kevin Watson
- Department of Psychiatry and Behavioral Sciences, University of Oklahoma College of Medicine, Oklahoma City, Oklahoma, USA
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The prevalence of sleep problems among children in mainland China: a meta-analysis and systemic-analysis. Sleep Med 2021; 83:248-255. [PMID: 34049044 DOI: 10.1016/j.sleep.2021.04.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 04/08/2021] [Accepted: 04/10/2021] [Indexed: 01/01/2023]
Abstract
BACKGROUND We conducted a meta-analysis and systematic review to identify a reliable estimate of sleep problems prevalence among children in mainland China and to describe its epidemiological characteristics. METHODS Relevant studies were searched thoroughly via electronic databases included China National Knowledge Infrastructure, Wanfang, Weipu, PubMed, Embase and Medline databases from inception until December 2020. Prevalence estimates were calculated by random-effects models. The sources of heterogeneity were explored using subgroup analyses and Meta-regression analysis, and publication bias was estimated by funnel plots and Egger's Test. RESULTS Overall, 66 studies were included in this meta-analysis, which revealed that the pooled prevalence of sleep problems was 37.6% (95%CI: 34.3-40.9%) with high heterogeneity (I2 = 99.6%,P < 0.001). The incidence of snoring was 7.7%, choking or gasping was 0.9%, apnea was 1.5%, restless sleep was 11.3%, mouth breathing was 4.7%, hyperhidrosis was 17.2%, leg movements was 2.7%, bruxism was 9.6%, sleep talking was 0.7%, sleep-walking was 0.8%, nightmare was 5.1%, enuresis was 3.4%, night awakening was 6.7% and trouble falling asleep was 11.1%. The prevalence rate of sleep problems among males was higher than females (OR:1.01,95%CI:1.05-1.13). In all age groups, the prevalence rates of sleep problems increased with age, including infancy or early childhood group (33.3%), pre-school group (38.9%), school-age group (43.7%). The prevalence rate in South China (30.4%, 95%CI: 23.9-36.8%) was the lowest, and the highest prevalence rate was in West China (47.4%,95%CI:35.9-58.9%), which than any other region in China. The point estimate for sleep disorders prevalence obtained using the CSHQ criterion was higher than other criteria. Meta-regression indicated that age group could influence prevalence estimation (P = 0.011). CONCLUSIONS Over the past two decades, the prevalence rate of sleep problems among children in mainland China has increased, significantly affecting two-fifth of the school-age children. The incidence of hyperhidrosis, restless sleep and trouble falling asleep were significantly higher than other sleep prombles. The prevalence rate of sleep problems in west China was significantly higher than in any other area. There is still a lack of guidelines on children's sleep problems in mainland China, so future research should pay special attention to the sleep problems of school-age children and children in economically backward areas.
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Ong HS, Lim CS, Png ALC, Kong JW, Peh ALH. Chronobiology and the case for sleep health interventions in the community. Singapore Med J 2021; 62:220-224. [PMID: 34409473 PMCID: PMC8801860 DOI: 10.11622/smedj.2021058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Our sleep-wake cycle is determined by the interaction between our homeostatic sleep drive and circadian rhythm. Each of us has a personalised biological rhythm or chronotype that determines the optimal time to fall asleep and wake up. Chronic sleep deprivation has been linked to the development of several physical and mental health disorders, as well as accidents and occupational errors. Around the world, growing recognition of the importance of sleep has led to the adoption of practices that promote sleep health. Given that Singaporeans were consistently found to be one of the most sleep-deprived populations in the world, we believe that there is an urgent need to pursue the introduction of community-based sleep health interventions here. This includes sleep education and promotion of sleep hygiene, adopting practices to reduce social jetlag and improve sleep health, and enhancing screening and treatment of sleep disorders.
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Affiliation(s)
- Hatta Santoso Ong
- Department of Psychological Medicine, Changi General Hospital, Singapore
- Department of Sleep Medicine, Surgery and Science, Changi General Hospital, Singapore
| | - Chau Sian Lim
- Department of Psychological Medicine, Changi General Hospital, Singapore
- Department of Sleep Medicine, Surgery and Science, Changi General Hospital, Singapore
| | - Ai-Li Constance Png
- Department of Sleep Medicine, Surgery and Science, Changi General Hospital, Singapore
- Department of Clinical Psychology, Changi General Hospital, Singapore
| | - Jing Wen Kong
- Hougang Polyclinic, National Healthcare Group Polyclinics, Singapore
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Singh HK, Joshi A, Malepati RN, Najeeb S, Balakrishna P, Pannerselvam NK, Singh YK, Ganne P. A survey of E-learning methods in nursing and medical education during COVID-19 pandemic in India. NURSE EDUCATION TODAY 2021; 99:104796. [PMID: 33607513 PMCID: PMC7865095 DOI: 10.1016/j.nedt.2021.104796] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/19/2021] [Accepted: 01/28/2021] [Indexed: 05/03/2023]
Abstract
BACKGROUND COVID-19 pandemic has necessitated mandatory e-learning in medical and nursing education. How far are developing countries like India (with wide socioeconomic and cultural diversity) geared up for this challenge remains unexplored. At this critical juncture, we aim to evaluate if online teaching methods are as feasible, acceptable, and effective as in-class teaching for medical/nursing students. OBJECTIVES The questionnaire captured: (1) practicability/feasibility of online classes, (2) health issues from online classes, (3) current methods for e-teaching, and (4) student attitudes and preferences. DESIGN Cross-sectional survey. SETTINGS Population-based study in India. PARTICIPANTS Nursing and medical undergraduate students (I-IV year). METHODOLOGY The online questionnaire was distributed to 200 medical and nursing colleges across India. Categorical variables were analyzed using chi-square tests. Binary logistic regression was done to analyze factors predicting health issues in students. p < 0.05 was considered significant. RESULTS Overall, 1541 medical and 684 nursing students completed the survey from 156 cities. The availability of laptop (p < 0.0001), Wi-Fi (p < 0.0001), dedicated room (p < 0.0001), and computer proficiency was more in students of affluent families and those from cities (p < 0.0001). Class duration >4 h/day (p < 0.0001), each class >40 min (p < 0.009) and pre-existing health issues (p < 0.0001) predicted the occurrence headache, eyestrain, anxiety, neck/back pain, and sleep disturbance. Power-point presentation was the most widely (80%) used method of teaching. Only 30% got adequate time to interact with teachers. Only 20.4% felt e-learning can replace conventional teaching. Students preferred: 3-6 classes/day, each class <40 min, 10-20 min break between classes and interactive sessions. CONCLUSION There is a need to improve information and communication infrastructure to enhance feasibility of e-learning for nursing/medical students in India. There should be guidelines (number of classes/day, length of each class, break between classes, curriculum, etc) to improve the retention capacity in students and reduce health issues. Continuous feedback from teachers and students will be required to make e-learning effective.
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Affiliation(s)
- Hemant Kumar Singh
- Department of Surgery, All India Institute of Medical Sciences (AIIMS), Mangalagiri, 522503, India
| | - Arvind Joshi
- Department of Surgery, All India Institute of Medical Sciences (AIIMS), Mangalagiri, 522503, India
| | - Raghavi N Malepati
- Department of Surgery, All India Institute of Medical Sciences (AIIMS), Mangalagiri, 522503, India
| | - Shaista Najeeb
- Department of Surgery, All India Institute of Medical Sciences (AIIMS), Mangalagiri, 522503, India
| | - Pavithra Balakrishna
- Department of Surgery, All India Institute of Medical Sciences (AIIMS), Mangalagiri, 522503, India
| | | | | | - Pratyusha Ganne
- Department of Ophthalmology, All India Institute of Medical Sciences (AIIMS), Mangalagiri, 522503, India.
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Bigalke JA, Greenlund IM, Nicevski JR, Carter JR. Effect of evening blue light blocking glasses on subjective and objective sleep in healthy adults: A randomized control trial. Sleep Health 2021; 7:485-490. [PMID: 33707105 DOI: 10.1016/j.sleh.2021.02.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/01/2021] [Accepted: 02/08/2021] [Indexed: 02/03/2023]
Abstract
OBJECTIVES Evening blue light has been shown to suppress melatonin, which can negatively impact sleep quality. The impact of evening blue light blocking (BLB) interventions on sleep remains ambiguous due to lack of randomized control trials. The present study tests the hypothesis that BLB glasses improve subjective and objective sleep in a population of healthy adults. DESIGN Two-week, randomized, controlled, crossover design. SETTING At-home testing of individuals in Michigan and Montana. PARTICIPANTS Twenty healthy adults (11 men, 9 women, age: 32 ± 12, body mass index: 28 ± 4 kg/m2). INTERVENTION Following a 1-week run-in baseline (ie, no glasses), participants were randomized to 1-week of BLB or control (ie, clear lens) glasses. Upon finishing the 1-week intervention, participants crossed over to the opposite condition. In both conditions, glasses were worn for 7 consecutive days from 6 PM until bedtime. MEASUREMENTS Objective sleep parameters were obtained using wrist actigraphy. Subjective sleep measures were assessed using sleep diaries. Karolinska Sleep Diaries were used to assess perceived sleep quality. RESULTS BLB reduced subjective sleep onset (21 ± 28 vs 24 ± 21 minute, P = .033) and awakenings (1.6 ± 1.0 vs 2.2 ± 1.0 awakenings, P = .019) compared to the control condition. In contrast, objective measures of sleep were not significantly impacted. In fact, our primary outcome variable of total sleep time (TST) tended to be paradoxically shorter in the BLB condition for both subjective (468 ± 45 vs 480 ± 48 minute, P = .066) and objective (433 ± 40 vs 449 ± 39 minute, P = .075) TST. CONCLUSIONS Blue light blocking glasses did not improve objective measures of sleep time or quality in healthy adults.
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Affiliation(s)
- Jeremy A Bigalke
- Department of Health and Human Development, Montana State University, Bozeman, Montana, USA; Department of Psychology, Montana State University, Bozeman, Montana, USA
| | - Ian M Greenlund
- Department of Health and Human Development, Montana State University, Bozeman, Montana, USA; Department of Psychology, Montana State University, Bozeman, Montana, USA
| | - Jennifer R Nicevski
- Department of Health and Human Development, Montana State University, Bozeman, Montana, USA
| | - Jason R Carter
- Department of Health and Human Development, Montana State University, Bozeman, Montana, USA; Department of Psychology, Montana State University, Bozeman, Montana, USA.
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Jahrami H, Rashed M, AlRasheed MM, Bragazzi NL, Saif Z, Alhaj O, BaHammam AS, Vitiello MV. Nomophobia is Associated with Insomnia but Not with Age, Sex, BMI, or Mobile Phone Screen Size in Young Adults. Nat Sci Sleep 2021; 13:1931-1941. [PMID: 34737661 PMCID: PMC8560167 DOI: 10.2147/nss.s335462] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 10/22/2021] [Indexed: 01/19/2023] Open
Abstract
PURPOSE NOMOPHOBIA (NO MObile PHone PhoBIA) or problematic smartphone use is a psychological disorder in which people are afraid of being cut off from their mobile phones. Currently, there has been no direct assessment of mobile phone screen size in the home setting and its effect on nomophobia and related symptoms, such as insomnia. Thus, we investigated the association between nomophobia, insomnia, and mobile phone screen size in a young adult population in Bahrain. PATIENTS AND METHODS Using a descriptive, cross-sectional design, we surveyed participants aged 18 to 35 between August and September 2020 using an online questionnaire. Participants completed demographic questions and questions about personal mobile phones, the Nomophobia Questionnaire (NMP-Q), and the Insomnia Severity Index (ISI). The mobile phone screen size was determined using an open-source online database. Crude and adjusted regression analyses were fitted to examine the associations between the study variables. RESULTS A total of 549 individuals, 54% females, were included in the final analyses. One hundred and fourteen participants (21%) had severe nomophobia, and 81 (14%) had clinical insomnia. A strong positive pair-wise linear association was observed between NMP-Q and ISI β 0.15, P = 0.001. Age, sex, BMI, and mobile phone screen size showed no association with the NMP-Q. CONCLUSION Nomophobia is very prevalent in young adult men and women, and it is closely associated with insomnia, regardless of mobile phone screen size, suggesting that mobile phone screen size should not be used as a proxy for hazardous usage.
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Affiliation(s)
- Haitham Jahrami
- Ministry of Health, Manama, Bahrain.,Department of Psychiatry, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Mona Rashed
- Ministry of Health, Manama, Bahrain.,Department of Psychiatry, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Maha M AlRasheed
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Nicola Luigi Bragazzi
- Department of Mathematics and Statistics, Laboratory for Industrial and Applied Mathematics (LIAM), York University, Toronto, ON, Canada
| | | | - Omar Alhaj
- Department of Nutrition, Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
| | - Ahmed S BaHammam
- Department of Medicine, College of Medicine, University Sleep Disorders Center, King Saud University, Riyadh, 11324, Saudi Arabia.,The Strategic Technologies Program of the National Plan for Sciences and Technology and Innovation in the Kingdom of Saudi Arabia, Riyadh, Saudi Arabia
| | - Michael V Vitiello
- Psychiatry & Behavioral Sciences, Gerontology & Geriatric Medicine, and Biobehavioral Nursing, University of Washington, Seattle, WA, 98195-6560, USA
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Jin M, Li X, Yan F, Chen W, Jiang L, Zhang X. The effects of low-color-temperature dual-primary-color light-emitting diodes on three kinds of retinal cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 214:112099. [PMID: 33285486 DOI: 10.1016/j.jphotobiol.2020.112099] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 10/03/2020] [Accepted: 11/23/2020] [Indexed: 12/20/2022]
Abstract
Long-term illumination of the retina with blue-light-excited phosphor-converted light-emitting diodes (LEDs) may result in decreased retinal function, even if the levels of blue light emitted are low. New low-color-temperature dual-primary-color LEDs have been developed that are composed of only two LED chips: a red chip and a yellow chip. These LEDs are expected to become a new type of healthy lighting source because they do not emit blue light, they lack phosphor, and they solve the problem of low efficiency encountered with phosphor-converted low-color-temperature LEDs. Many studies have indicated that these new low-color-temperature LEDs are likely to have therapeutic effects. However, the biological safety of these LEDs needs to be explored before the therapeutic effects are explored. Therefore, this experiment was conducted to investigate the effects of the new low-color-temperature LEDs and fluorescent white LEDs on three types of retinal cells. We observed that the viability and numbers of retinal cells decreased gradually with increasing LED color temperature. The new low-color-temperature LEDs caused less death and adverse effects on proliferation than the fluorescent white LEDs. After irradiation with high-color-temperature LEDs, the expression of Zonula Occludens-1 (ZO-1) was decreased and discontinuous in ARPE-19 cells; the stress protein hemeoxygenase-1 (HO-1) was upregulated in R28 cells; and glial fibrillary acidic protein (GFAP) and vimentin were upregulated in rMC-1 cells. We therefore conclude that the new white LEDs cause almost no damage to retinal cells and reduce the potential human health risks of chronic exposure to fluorescent white LEDs.
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Affiliation(s)
- Ming Jin
- Affiliated Eye Hospital of Nanchang University, Jiangxi Research Institute of Ophthalmology and Visual Science, Jiangxi Clinical Research Center for Ophthalmic Disease, 463 Bayi Road, Nanchang, Jiangxi 330006, China
| | - Xiongfeng Li
- Affiliated Eye Hospital of Nanchang University, Jiangxi Research Institute of Ophthalmology and Visual Science, Jiangxi Clinical Research Center for Ophthalmic Disease, 463 Bayi Road, Nanchang, Jiangxi 330006, China
| | - Feng Yan
- Affiliated Eye Hospital of Nanchang University, Jiangxi Research Institute of Ophthalmology and Visual Science, Jiangxi Clinical Research Center for Ophthalmic Disease, 463 Bayi Road, Nanchang, Jiangxi 330006, China
| | - Weixin Chen
- Affiliated Eye Hospital of Nanchang University, Jiangxi Research Institute of Ophthalmology and Visual Science, Jiangxi Clinical Research Center for Ophthalmic Disease, 463 Bayi Road, Nanchang, Jiangxi 330006, China
| | - Lei Jiang
- Queen Mary School of Nanchang University, 461 Bayi Road, Nanchang, Jiangxi 330046, China
| | - Xu Zhang
- Affiliated Eye Hospital of Nanchang University, Jiangxi Research Institute of Ophthalmology and Visual Science, Jiangxi Clinical Research Center for Ophthalmic Disease, 463 Bayi Road, Nanchang, Jiangxi 330006, China.
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46
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Nakahira K, Mutoh N, Fuchida S, Yamamoto T, Kimijima M, Ichibe Y, Tani-Ishii N. Effects of different light sources used for dental operating microscope illumination on the visual function of operators. J Oral Biosci 2020; 62:363-371. [PMID: 33127525 DOI: 10.1016/j.job.2020.10.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 10/15/2020] [Accepted: 10/21/2020] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Advances in dental operative microscopes (DOMs) enable examination of root canal morphology or detection of root fractures otherwise not visible to the naked eye. However, dental therapy involving prolonged use of DOMs requires precision within a limited visual field, resulting in eye strain among users. This study examined the effects of halogen and light-emitting diode (LED) light sources on asthenopia and visual function following use of DOMs. METHODS The study used halogen and LED light sources in DOMs. The first experiment was conducted on 6 participants with corrected visual acuity without any organic eye disease. General visual function test (calculation ability test, hand grip strength test, and ophthalmic examination) and subjective symptom questionnaire were used to evaluate the degree of fatigue before and after DOM use. The second experiment was conducted on 9 participants with spherical equivalents within ±4 diopters (D) and astigmatism of 1 D or less. Accommodative function tests (precise test for asthenopia) and a subjective symptom questionnaire (asthenopia) were used before and after use of DOM. RESULTS No significant changes were noted in the degree of fatigue and ophthalmological parameters before and after the procedure with either light source or in between light sources. The tear firm breakup time was shortened after therapy, and a tendency toward dry eyes was observed while using the LED light source. CONCLUSIONS The halogen and LED light sources used for DOM therapy had similar effects on asthenopia of the operators, with no significant changes in visual function.
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Affiliation(s)
- Kengo Nakahira
- Division of Pulp Biology, Department of Oral Interdisciplinary, Graduate School of Dentistry, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka, Kanagawa, 238-8580, Japan
| | - Noriko Mutoh
- Division of Pulp Biology, Department of Oral Interdisciplinary, Graduate School of Dentistry, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka, Kanagawa, 238-8580, Japan.
| | - Shinya Fuchida
- Division of Dental Sociology, Department of Disaster Medicine, Dental Sociology Graduate School of Dentistry, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka, Kanagawa, 238-8580, Japan
| | - Tatsuo Yamamoto
- Division of Dental Sociology, Department of Disaster Medicine, Dental Sociology Graduate School of Dentistry, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka, Kanagawa, 238-8580, Japan
| | - Masumi Kimijima
- Department of Ophthalmology, Kanagawa Dental University Yokohama Clinic, 3-31-6 Tsuruyacho, Yokohama, Kanagawa, 221-0835, Japan
| | - Yoshiaki Ichibe
- Department of Ophthalmology, Kanagawa Dental University Yokohama Clinic, 3-31-6 Tsuruyacho, Yokohama, Kanagawa, 221-0835, Japan
| | - Nobuyuki Tani-Ishii
- Division of Pulp Biology, Department of Oral Interdisciplinary, Graduate School of Dentistry, Kanagawa Dental University, 82 Inaoka-cho, Yokosuka, Kanagawa, 238-8580, Japan
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Esaki Y, Takeuchi I, Tsuboi S, Fujita K, Iwata N, Kitajima T. A double-blind, randomized, placebo-controlled trial of adjunctive blue-blocking glasses for the treatment of sleep and circadian rhythm in patients with bipolar disorder. Bipolar Disord 2020; 22:739-748. [PMID: 32276301 DOI: 10.1111/bdi.12912] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVES Recent studies have suggested that evening blue light exposure is associated with sleep and circadian rhythm abnormalities. This study examined the effect of blue-blocking (BB) glasses on sleep and circadian rhythm in patients with bipolar disorder (BD). METHODS We used a randomized, placebo-controlled, double-blinded design. Outpatients with BD and also with insomnia were randomly assigned to wear either orange glasses (BB) or clear ones (placebo) and were instructed to use these from 20:00 hours until bedtime for 2 weeks. The primary outcome metric was the difference in change from baseline to after intervention in sleep quality, as measured by the visual analog scale (VAS). RESULTS Forty-three patients were included in this study (BB group, 21; placebo group, 22). The change in sleep quality as per the VAS metric was not significantly different between the two groups (95% confidence interval [CI], -3.34 to 24.72; P = .13). However, the Morningness-Eveningness Questionnaire score had shifted to an advanced rhythm in the BB group and to a delayed rhythm in the placebo group, and the difference in these changes was statistically significant (95% CI, 1.69-7.45; P = .003). The change in the actigraphy sleep parameters and mood symptoms was not significantly different between the two groups. CONCLUSION Although concurrent medications may have influenced, our results suggest that BB glasses may be useful as an adjunctive treatment for circadian rhythm issues in patients with BD.
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Affiliation(s)
- Yuichi Esaki
- Department of Psychiatry, Okehazama Hospital, Toyoake, Aichi, Japan.,Department of Psychiatry, Fujita Health University School of Medicine, Aichi, Japan
| | - Ipei Takeuchi
- Department of Psychiatry, Okehazama Hospital, Toyoake, Aichi, Japan
| | - Soji Tsuboi
- Department of Psychiatry, Okehazama Hospital, Toyoake, Aichi, Japan
| | - Kiyoshi Fujita
- Department of Psychiatry, Okehazama Hospital, Toyoake, Aichi, Japan.,The Neuroscience Research Center, Aichi, Japan
| | - Nakao Iwata
- Department of Psychiatry, Fujita Health University School of Medicine, Aichi, Japan
| | - Tsuyoshi Kitajima
- Department of Psychiatry, Fujita Health University School of Medicine, Aichi, Japan
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48
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Subjective and objective sleep differ in male and female collegiate athletes. Sleep Health 2020; 6:623-628. [DOI: 10.1016/j.sleh.2020.01.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 01/12/2020] [Accepted: 01/22/2020] [Indexed: 01/10/2023]
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Shechter A, Quispe KA, Mizhquiri Barbecho JS, Slater C, Falzon L. Interventions to reduce short-wavelength ("blue") light exposure at night and their effects on sleep: A systematic review and meta-analysis. SLEEP ADVANCES : A JOURNAL OF THE SLEEP RESEARCH SOCIETY 2020; 1:zpaa002. [PMID: 37192881 PMCID: PMC10127364 DOI: 10.1093/sleepadvances/zpaa002] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/15/2020] [Indexed: 12/20/2022]
Abstract
The sleep-wake and circadian cycles are influenced by light, particularly in the short-wavelength portion of the visible spectrum. Most personal light-emitting electronic devices are enriched in this so-called "blue" light. Exposure to these devices in the evening can disturb sleep. Interventions to reduce short-wavelength light exposure before bedtime may reduce adverse effects on sleep. We conducted a systematic review and meta-analysis to examine the effect of wearing color-tinted lenses (e.g. orange or amber) in frames to filter short-wavelength light exposure to the eye before nocturnal sleep. Outcomes were self-reported or objective measures of nocturnal sleep. Relatively few (k = 12) studies have been done. Study findings were inconsistent, with some showing benefit and others showing no effect of intervention. Meta-analyses yielded a small-to-medium magnitude combined effect size for sleep efficiency (Hedge's g = 0.31; 95% CI: -0.05, 0.66; I2 = 38.16%; k = 7), and a small-to-medium combined effect size for total sleep time (Hedge's g = 0.32; 95% CI: 0.01, 0.63; I2 = 12.07%; k = 6). For self-report measures, meta-analysis yielded a large magnitude combined effects size for Pittsburgh Sleep Quality Index ratings (Hedge's g = -1.25; 95% CI: -2.39, -0.11; I2 = 36.35%; k = 3) and a medium combined effect size for total sleep time (Hedge's g = 0.51; 95% CI: 0.18, 0.84; I2 = 0%; k = 3), Overall, there is some, albeit mixed, evidence that this approach can improve sleep, particularly in individuals with insomnia, bipolar disorder, delayed sleep phase syndrome, or attention-deficit hyperactive disorder. Considering the ubiquitousness of short-wavelength-enriched light sources, future controlled studies to examine the efficacy of this approach to improve sleep are warranted. Systematic review registration: PROSPERO 2018 CRD42018105854.
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Affiliation(s)
- Ari Shechter
- Center for Behavioral Cardiovascular Health, Columbia University Irving Medical Center, New York, NY
- Sleep Center of Excellence, Columbia University Irving Medical Center, New York, NY
| | - Kristal A Quispe
- Center for Behavioral Cardiovascular Health, Columbia University Irving Medical Center, New York, NY
| | | | - Cody Slater
- Columbia University Vagelos College of Physicians and Surgeons, New York, NY
| | - Louise Falzon
- Center for Personalized Health, Feinstein Institutes for Medical Research, Northwell Health, New York, NY
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50
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Šmotek M, Fárková E, Manková D, Kopřivová J. Evening and night exposure to screens of media devices and its association with subjectively perceived sleep: Should "light hygiene" be given more attention? Sleep Health 2020; 6:498-505. [PMID: 32197951 DOI: 10.1016/j.sleh.2019.11.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 11/18/2019] [Accepted: 11/22/2019] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The aim of the study was to examine subjective sleep quality in a population of healthy volunteers and its association with evening and night light exposure to screens of media devices. METHODS A total of 693 participants (mean age 31.2±11.4 years, 159 men, and 538 women) completed an online questionnaire battery consisting of several sleep-related questionnaires: PSQI, FSS, MCTQ, MEQ, and added questions assessing the timing and character the evening and night exposure to electronical devices (TV, PC, tablets, and phones), and the use of various filters blocking short-wavelength light. RESULTS Statistical analyses show that longer cumulative exposure to screen light in the evening was associated with greater sleep inertia in the morning (P = .019, η2=0.141) and longer sleep latency on workdays P = .038, η2=0.135). Furthermore, exposure to screen light 1.5 h before sleep or during night awakenings was also associated with a decreased chance to wake up before alarm clock (P = .003, d=0.30), larger social jet lag (P < .001, d=0.15), more daytime dysfunction (P < .001, d=0.40), decreased subjective sleep quality (P = .024, d=0.16), and more fatigue (P < .001, d=0.52). A statistical trend for an increase in duration of sleep on weekdays (P = .058, d=0.23) was also found in participants using blue-light filters in the evening hours. DISCUSSION Our results are in line with other studies that converge to show the negative association of evening and night exposure to short-wavelength light on subjective and objective sleep parameters. Results suggest that light hygiene in general population should be given more attention not only in the context of clinical sleep medicine but also in the realm of public health.
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Affiliation(s)
- Michal Šmotek
- National Institute of Mental Health, Klecany, Czech Republic; Third Faculty of Medicine, Charles University, Prague, Czech Republic.
| | - Eva Fárková
- National Institute of Mental Health, Klecany, Czech Republic; Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Denisa Manková
- National Institute of Mental Health, Klecany, Czech Republic
| | - Jana Kopřivová
- National Institute of Mental Health, Klecany, Czech Republic; Third Faculty of Medicine, Charles University, Prague, Czech Republic
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