{"title":"Nightmare Frequency and Nightmare Distress in Poor Sleepers: A Cross-Sectional Study.","authors":"Michael Schredl","doi":"10.1111/jsr.70187","DOIUrl":"https://doi.org/10.1111/jsr.70187","url":null,"abstract":"<p><p>Having nightmares can contribute to poor sleep quality, and having sleep problems can be accompanied by increased nightmare frequency. The etiological models of insomnia and nightmare disorder also show some parallels. The present cross-sectional study included 654 participants (509 women, 144 men, 1 non-binary) with mild to moderate sleep problems (mean age: 41.19 ± 12.95 years). As expected, nightmare frequency was elevated compared to previously published findings of a representative sample (large effect size). Moreover, waking-life stress level moderated-at least partially-the relationship between poor sleep quality and nightmare frequency. Like previous studies, gender and waking-life stress contributed significantly to nightmare distress-after controlling for the effect of nightmare frequency on nightmare distress. Overall, the present study emphasises the close link between sleep problems and nightmares. Based on previous studies, it seems very beneficial to offer nightmare sufferers additional modules of cognitive-behavioural therapy for insomnia and similarly offer patients with insomnia disorder who also reported elevated nightmare distress a nightmare treatment module like Imagery Rehearsal Therapy.</p>","PeriodicalId":17057,"journal":{"name":"Journal of Sleep Research","volume":" ","pages":"e70187"},"PeriodicalIF":3.9,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dieter Riemann, Christoph Nissen, Pierre A. Geoffroy, Bernd Feige, Jason Ellis
{"title":"Sleep and Dreams as Reflected by Science Fiction Literature and Films—Anything to Learn From?","authors":"Dieter Riemann, Christoph Nissen, Pierre A. Geoffroy, Bernd Feige, Jason Ellis","doi":"10.1111/jsr.70183","DOIUrl":"10.1111/jsr.70183","url":null,"abstract":"<p>Sleep and dreams are frequent themes in science fiction (Sci-Fi) literature and films, often used to explore questions about consciousness, reality, technology and the human experience. Sci-Fi authors and filmmakers utilise the enigmatic nature of sleep and dreams to blur the boundaries between reality and imagination, raising philosophical questions or extrapolating the effects of futuristic technologies on human life. In this article, we want to highlight some areas that have been recurring themes relating to sleep and dreams in Sci-Fi. These will include the concepts of so-called hypno-paedagogics, space hibernation, brain machine interfaces, electrostimulation, genetic engineering and the impact of substances (viruses, bacteria, drugs, toxins) on sleep and dreams. We will then confront Sci-Fi concepts with what is known from contemporary sleep science and judge what might be feasible, or not, in the future. A question we also want to address is how the relationship between sleep science and sleep Sci-Fi can be conceptualised: whether novel concepts have been instigated by Sci-Fi and taken up by sleep science or whether Sci-Fi merely reflects state of the art topics of sleep science, with just adding a touch of fiction.</p>","PeriodicalId":17057,"journal":{"name":"Journal of Sleep Research","volume":"34 5","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jsr.70183","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K Berggren, H Ahonen, U Lindmark, A Broström, O Sunnergren
{"title":"Clinical Insights Regarding Oral Health Among Untreated and Positive Airway Pressure Treated Obstructive Sleep Apnea Patients.","authors":"K Berggren, H Ahonen, U Lindmark, A Broström, O Sunnergren","doi":"10.1111/jsr.70179","DOIUrl":"https://doi.org/10.1111/jsr.70179","url":null,"abstract":"<p><p>Oral health-related side effects are common in patients with both untreated and PAP-treated OSA and can hinder adherence to PAP treatment. Despite extensive research on OSA and PAP, oral health experiences of PAP professionals remain unexplored. The aim was to describe PAP professionals' experiences and management of symptoms and treatment effects on oral health in patients with OSA before and during PAP treatment. The study has a qualitative design with an inductive approach, where 17 strategically selected PAP professionals (physicians, nurses, and biomedical scientists) at nine Swedish PAP clinics participated in semi-structured in-depth interviews. The data was analysed with content analysis. Four categories described PAP professionals' experiences before and during PAP treatment. The categories Acknowledging oral health aspects when exploring the clinical data and Exploring the patients' oral health-related experiences described the OSA diagnosis, intra-oral visual features, and shared signs between OSA and oral health. The categories Adjusting the PAP device related to oral health and Managing oral health-related situations during PAP treatment described the oral health-related challenges in patient collaboration and individualised PAP treatment. In conclusion, oral dryness was an oral health-related symptom of OSA and a side effect of PAP treatment, noted by PAP professionals. Management of oral health-related situations and treatment effects was difficult as there was a lack of knowledge and no established remedial routine.</p>","PeriodicalId":17057,"journal":{"name":"Journal of Sleep Research","volume":" ","pages":"e70179"},"PeriodicalIF":3.9,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Developing a Cognitive Behavioural Therapy for Insomnia Intervention for Adolescents With Co-Morbid Mental Health Using an Iterative Expert Consultation Process.","authors":"Stephanie McCrory, Megan Crawford, Kenneth MacMahon, Carey Ross, Dipalika Mohanty, Dinaish Mistry, Anastasia Thalia Fulton Chadwick, Leanne Fleming","doi":"10.1111/jsr.70174","DOIUrl":"10.1111/jsr.70174","url":null,"abstract":"<p><p>Insomnia is prevalent in adolescents with co-morbid mental health problems but is often overlooked due to limited access to training for practitioners in the assessment and treatment of insomnia. Whilst Cognitive Behavioural Therapy is the recommended treatment for insomnia in adults (CBTi), there are no standard treatment guidelines for adolescents and limited research with adolescents with co-morbid mental health problems. Therefore, our aim was to develop a CBTi intervention for adolescents with co-morbid mental health problems. This study utilised an iterative expert consultation approach to develop a CBTi intervention and define the appropriate target population, components and delivery. Eighteen experts were identified from literature searches and professional networks and invited to participate. Three iterative rounds of questionnaires were conducted and included both open-ended and closed-ended questions. In total, seven experts participated (R1 = 7, R2 = 5 and R3 = 1). In R1, four main themes emerged: (1) CBTi is appropriate for early-mid adolescents with anxiety/depression, (2) the proposed content and format were appropriate but required adaptation, (3) the proposed method of delivery was appropriate (i.e., in-person, by trained practitioner) and (4) parent/caregiver involvement is necessary. In R2, the intervention protocol was reviewed and finalised. In R3, the intervention materials were reviewed. The newly developed intervention comprises 4 weekly sessions, intervention materials and a training package for non-sleep experts. To our knowledge, this is the first study to utilise an iterative expert consultation process to develop an insomnia intervention for adolescents with co-morbid mental health.</p>","PeriodicalId":17057,"journal":{"name":"Journal of Sleep Research","volume":" ","pages":"e70174"},"PeriodicalIF":3.9,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144883088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vidhya V Nair, Brianna R Kish, Hideyuki Oshima, Qiuting Wen, Yunjie Tong, A J Schwichtenberg
{"title":"Cerebral and Peripheral Hemodynamics Across Wakefulness and NREM Sleep.","authors":"Vidhya V Nair, Brianna R Kish, Hideyuki Oshima, Qiuting Wen, Yunjie Tong, A J Schwichtenberg","doi":"10.1111/jsr.70180","DOIUrl":"https://doi.org/10.1111/jsr.70180","url":null,"abstract":"<p><p>Wake/sleep-related changes in cerebral hemodynamic oscillations are well established, but similar changes in peripheral hemodynamics remain largely understudied. Moreover, how the relationship between cerebral and peripheral hemodynamics varies across sleep-wake states is not well understood, despite evidence that these oscillations in the low-frequency range are strongly coupled during wakefulness. In this study, we investigated the temporal and spectral characteristics of cerebral and peripheral hemodynamics, as well as their low-frequency coupling, across sleep and wake states. To this end, we simultaneously measured cerebral hemodynamics using functional magnetic resonance imaging (fMRI) of the brain and peripheral hemodynamics using near-infrared spectroscopy (NIRS) of the fingertips in 10 healthy participants (6 females; age 19-24 years, mean ± SD: 20.90 ± 1.59 years) during wakefulness and non-rapid eye movement (NREM) sleep. Our results show that during sleep, cerebral hemodynamics differ markedly from peripheral hemodynamics in both oscillation amplitude and spectral power. Furthermore, low-frequency coupling between cerebral and peripheral hemodynamics becomes desynchronized during NREM3 sleep. These findings support the notion that NREM3 sleep plays a key role in the optimal restoration of cerebral vasomotion.</p>","PeriodicalId":17057,"journal":{"name":"Journal of Sleep Research","volume":" ","pages":"e70180"},"PeriodicalIF":3.9,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Agnes M Baarsen, Naomi A A M van den Broek, Thessa I M Hilgenkamp, Dederieke A M Maes-Festen, Roy G Elbers, Sylvia A Huisman
{"title":"Exploring the Relationship Between General Motor Activity and Optimal Actigraphy Sleep Configurations: A Systematic Review.","authors":"Agnes M Baarsen, Naomi A A M van den Broek, Thessa I M Hilgenkamp, Dederieke A M Maes-Festen, Roy G Elbers, Sylvia A Huisman","doi":"10.1111/jsr.70148","DOIUrl":"10.1111/jsr.70148","url":null,"abstract":"<p><p>This study aimed to determine the optimal configuration of wrist actigraphy for detecting sleep-wake patterns in adults with varying categories of general motor activity (Aim 1), and to assess its validity in relation to polysomnography (Aim 2). For Aim 1, a systematic review was conducted in accordance with PRISMA and QUADAS-2 guidelines using data sources including Embase, MedlineALL, Web of Science Core Collection, Cochrane Central Register of Controlled Trials, PsycINFO, Cinahl, and Google Scholar. For Aim 2, a meta-analysis was performed on mean sleep differences between actigraphy and polysomnography of studies that analysed actigraphy using the optimal configuration with similar categories of general motor activity. In total, 21 studies that investigated the Oakley algorithm (used by Actiwatch and Motionwatch) in various sleep-wake thresholds provided sufficient information to define the optimal threshold (Aim 1). Additionally, 39 studies (all using Actiwatch) validated the optimal threshold for the respective category of general motor activity and were used to determine its validity (Aim 2). Findings regarding Aim 1 indicated that for actigraphs using the Oakley algorithm, no threshold other than the default setting of 40 cpm minimised differences between actigraphy and polysomnography for adults with normal general motor activity. However, a threshold of 20 cpm enhanced accuracy for adults with reduced general motor activity. Due to the heterogeneity of the studies included for Aim 2, it was not possible to determine the validity of actigraphy, and thereby the minimum general motor activity needed for reliable actigraphy. Further research on customising actigraph configurations is needed.</p>","PeriodicalId":17057,"journal":{"name":"Journal of Sleep Research","volume":" ","pages":"e70148"},"PeriodicalIF":3.9,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144883089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Javad Hasan Nia Roshan, Ali Moghimi, Ali Gorji, Amir Shojaei, Vladyslav V Vyazovskiy
{"title":"Auditory Salience Detection Across Wake and Sleep States: Mismatch Negativity and Event-Related Spectral Perturbation in the Rat Superior Colliculus.","authors":"Javad Hasan Nia Roshan, Ali Moghimi, Ali Gorji, Amir Shojaei, Vladyslav V Vyazovskiy","doi":"10.1111/jsr.70129","DOIUrl":"https://doi.org/10.1111/jsr.70129","url":null,"abstract":"<p><p>Understanding the detection of salient auditory stimuli by the deep layer of the superior colliculus (dSC) during REM and NREM sleep offers valuable insights into the neurophysiological mechanisms of state-dependent auditory information processing. We recorded local field potentials (LFP) from dSC, electrocorticogram (ECoG) from frontal/parietal cortical regions, and neck electromyogram (EMG) in freely moving rats during sleep and awake states under oddball paradigm auditory stimulations. Our analysis focused on mismatch negativity (MMN) responses and event-related spectral perturbation (ERSP) in slow gamma (30-60 Hz) activity (SGA) and medium gamma (60-95 Hz) activity (MGA) frequency bands in wakefulness, REM and NREM sleep using three different intensities (35-, 55-, 80-dB) of stimulation. Data were analysed using repeated-measure two-way ANOVA and Linear Mixed Model. We found that the dSC exhibited significantly increased MMN responses to salient auditory stimuli across nearly all conditions (p < 0.05), specifically in REM, compared to other vigilance states. Additionally, stimulus intensity in pure tone experiments significantly enhances the MMN peak amplitude (p < 0.0001). The dSC further illustrated state-dependent spectral dynamics: SGA (30-60 Hz) ERSP substantially increased in NREM (p < 0.0001), while MGA (60-95 Hz) ERSP increased in both REM/NREM significantly (p < 0.001). These findings demonstrate that the dSC, a key node within the auditory processing network, retains robust auditory salience detection in sleep states.</p>","PeriodicalId":17057,"journal":{"name":"Journal of Sleep Research","volume":" ","pages":"e70129"},"PeriodicalIF":3.9,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Severin Ableidinger, Luigi DeGennaro, Sergio Mota-Rolim, Serena Scarpelli, Courtney J Bolstad, Bjørn Bjorvatn, Colin A Espie, Yves Dauvilliers, Maria Korman, Anne-Marie Landtblom, Giuseppe Plazzi, Kentaro Matsui, Juliana Yordanova, Adrijana Koscec Bjelajac, Catia Reis, Frances Chung, Ilona Merikanto, Yun K Wing, Markku Partinen, Tainá Macêdo, Michael R Nadorff, Brigitte Holzinger
{"title":"Lucid Dreaming: Not Just Awareness, but Agency.","authors":"Severin Ableidinger, Luigi DeGennaro, Sergio Mota-Rolim, Serena Scarpelli, Courtney J Bolstad, Bjørn Bjorvatn, Colin A Espie, Yves Dauvilliers, Maria Korman, Anne-Marie Landtblom, Giuseppe Plazzi, Kentaro Matsui, Juliana Yordanova, Adrijana Koscec Bjelajac, Catia Reis, Frances Chung, Ilona Merikanto, Yun K Wing, Markku Partinen, Tainá Macêdo, Michael R Nadorff, Brigitte Holzinger","doi":"10.1111/jsr.70181","DOIUrl":"https://doi.org/10.1111/jsr.70181","url":null,"abstract":"<p><p>During lucid dreaming (LD), dreamers are aware that they are dreaming and may be able to influence the oneiric content. There has been recent debate about the relative importance of the ability to influence the dream and having agency over the pure awareness of dreaming. To underline this, we examined the associations of lucid dreams without agency (LD-Ag) and lucid dreams with agency (LD + Ag) to sleep and mental health problems and long COVID during the pandemic. We collected data in 16 countries on four continents from May to December 2021 on 10,715 subjects. Logistic regression was performed to predict LD-Ag and LD + Ag, with a sample of 8133 participants. We found that 30% of the participants frequently knew they were dreaming during the pandemic. About half of those (17%) reported that they could influence their dreams. Female gender and anxiety symptoms were negatively associated with LD + Ag. Dream recall, nightmares, insomnia, dream enactment behaviour (DEB), sleep vocalisation, short and long COVID and PTSD were positively associated with LD + Ag. Old age, dream recall, nightmares and anxiety symptoms were positively associated with LD-Ag, while short sleep length, being an evening type, and short COVID were negatively associated with LD-Ag. The different associations for LD-Ag and LD + Ag suggest that they may be distinct sleep states. This is also the first study to show that both COVID-19 and long COVID are associated with LD.</p>","PeriodicalId":17057,"journal":{"name":"Journal of Sleep Research","volume":" ","pages":"e70181"},"PeriodicalIF":3.9,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Katherine G Bay, Arash Maghsoudi, Amin Ramezani, Drew A Helmer, Amir Sharafkhaneh, Javad Razjouyan
{"title":"Changes in Self-Reported Excessive Daytime Sleepiness Are Associated With 5-Year All-Cause Mortality Risk Among Veterans.","authors":"Katherine G Bay, Arash Maghsoudi, Amin Ramezani, Drew A Helmer, Amir Sharafkhaneh, Javad Razjouyan","doi":"10.1111/jsr.70168","DOIUrl":"10.1111/jsr.70168","url":null,"abstract":"<p><p>Excessive daytime sleepiness (EDS) is linked to adverse clinical outcomes. This study evaluated changes in a validated tool to assess EDS, the Epworth Sleepiness Scale (ESS) and mortality risk. This retrospective cohort study included Veterans receiving sleep-related services in the Department of Veterans Affairs (VA) from October 4, 1999 to August 18, 2018, with two qualifying ESS measures. ESS values were extracted from patient notes using a validated natural language processing (NLP) pipeline (96% accuracy). ESS scores were categorised as Normal (0-10) or Abnormal (11-24). Patients were grouped based on ESS changes: Normal-Normal, Normal-Abnormal, Abnormal-Abnormal and Abnormal-Normal. Cox proportional hazards models adjusted for time, age, sex, race and comorbid conditions assessed the risk of 5-year all-cause mortality. Among 17,967 qualifying Veterans (mean age: 56.3 (SD 13.5) years), 11.75% died within 5 years of the second ESS measure. At baseline, 9342 (52.0%) had EDS, for whom 2232 (12.4%) improved to normal by the second exam (Abnormal-Normal). The Normal-Abnormal group had a 25% higher adjusted all-cause mortality risk within 5 years (aHR: 1.25, 95% CI: 1.09, 1.44) compared to the Normal-Normal group, with progressively increasing risk after age 55. In contrast, neither persistent abnormal sleepiness (Abnormal-Abnormal) nor improvement from abnormal to normal (Abnormal-Normal) was associated with significantly different mortality risk compared to the Normal-Normal group. ESS can efficiently identify EDS, which may serve as a clinical marker for 5-year all-cause mortality risk, particularly among Veterans seeking VHA sleep services aged 55 and older.</p>","PeriodicalId":17057,"journal":{"name":"Journal of Sleep Research","volume":" ","pages":"e70168"},"PeriodicalIF":3.9,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12496456/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144873750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyun A Cho, Dong-Wook Lee, Munyoung Yang, Tae-Won Jang, Seong-Sik Cho, Mo-Yeol Kang
{"title":"Comparing the Health Impacts of Fixed Night and Rotating Shift Work: An Umbrella Review of Meta-Analyses.","authors":"Hyun A Cho, Dong-Wook Lee, Munyoung Yang, Tae-Won Jang, Seong-Sik Cho, Mo-Yeol Kang","doi":"10.1111/jsr.70172","DOIUrl":"10.1111/jsr.70172","url":null,"abstract":"<p><p>Despite abundant research on the health risks of shift work, studies directly comparing fixed night work and rotating-shift work are relatively rare. This study systematically reviewed and synthesised recent meta-analytic findings to assess how fixed night work and rotating-shift work influence health outcomes. An umbrella review of meta-analyses was conducted, including studies published until December 2024 from PubMed, Embase and Web of Science. Meta-analyses examining health risks by shift type were included. Risk estimates and methodological quality (AMSTAR 2) were analysed. Fixed night shifts were linked to higher risks of ischaemic heart disease (pooled RR: 1.44; 95% CI: 1.10-1.89), increased blood pressure and obesity (pooled OR: 1.43; 95% CI: 1.19-1.71), based on adjusted estimates from the included meta-analyses. Rotating shifts were associated with greater risks of overall cancer risk (pooled OR: 1.14; 95% CI: 1.04-1.24) and pre-eclampsia (pooled OR: 1.75; 95% CI: 1.01-3.01). Fixed shifts showed more melatonin disruption and miscarriage risks (pooled OR: 1.23; 95% CI: 1.03-1.47), while rotating shifts were more strongly associated with impaired sleep quality, characterised by reduced sleep efficiency, shorter sleep duration and increased sleep disturbance. Although it is difficult to conclude definitively which type of shift work is more harmful overall, fixed night shifts appear to pose greater cardiometabolic risks-particularly for ischaemic heart disease, increased blood pressure, Type 2 diabetes and obesity-while cancer-related outcomes were more consistently associated with rotating shift work.</p>","PeriodicalId":17057,"journal":{"name":"Journal of Sleep Research","volume":" ","pages":"e70172"},"PeriodicalIF":3.9,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144873751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}