Sleep Length Research Articles

Sleep disorders and a review of the uses of valerian, chamomile, lavender and passionflower: Pharmacy students’ knowledge and views

Insomnia is a common sleep disorder that affects the quality and length of sleep. Individuals who suffer from insomnia may encounter daytime fatigue, mood problems, impaired concentration, and increased risk of chronic diseases. This disorder can be acute or chronic. Acute insomnia is short-term and usually triggered by stress or life events, while chronic insomnia is long-term and often associated with other medical or psychological conditions. Insomnia can be treated with medications, lifestyle changes or herbal remedies. Four different herbs are thought of as potential treatment for insomnia: Valerian, Chamomile, Lavender, and Passionflower. This paper analyzes the potential effects of these remedies and their effectiveness in treating insomnia. It also collected data on what pharmacy students know about sleep disorders and their opinions about aspects that affect sleep. A total of 40 students completed the demographic survey questions with a 100% response rate. Of these, 36 answered the five knowledge-based questions (89.5% response rate) and about 35 (88%) completed the opinion questions. The five opinion statements had an average agreement rate of 81.2% among the survey respondents.

Efficacy of 1,5-anhydro-D-fructose on reducing mental stress: a randomized, double-blind, placebo-controlled trial-a pilot study.

Brain-derived neurotrophic factor (BDNF) plays an important role in mental stress. We have previously reported that 1,5-anhydro-D-fructose (1,5-AF) increases brain BDNF in vivo. The present randomized, controlled, double-blind study aimed to clinically evaluate the effects of 1,5-AF oral intake on mental stress in terms of three parameters: sleep, mood, and bowel issues. Healthy volunteers aged between 22 and 71 years (n = 24) were randomly assigned to receive 5.5 g of 1,5-AF or placebo orally, once daily for 4 weeks. Pre- and post-intervention, the subjects completed the Oguri-Shirakawa-Azumi Sleep Inventory, Middle-Aged and Aged Version (OSA-MA); Profile of Mood States, Second Edition (POMS2); and Constipation Assessment Scale (CAS) questionnaires. In the OSA-MA, both "sleepiness on rising" and "sleep length" were significantly improved after treatment with 1,5-AF compared with before treatment. Furthermore, in the POMS2, there was a clear tendency toward reduced "Anger-Hostility" in the 1,5-AF group after treatment, and in the CAS, there was a clear tendency toward reduced "diarrhea or liquid stool" in the 1,5-AF group after treatment. Together, our findings indicate that 1,5-AF has some effects on reducing post-intervention mental stress levels.

SP5.6 - Sleep Quality and Barriers to Sleep on a Postoperative Surgical Ward

Abstract Aim Sleep is an essential part of recovery post-operatively and poor sleep quality has been linked to increased patient pain, increased rates of post-operative complications such as delirium and to longer hospital stays. It is widely accepted that adults need at least seven hours of sleep at night. Surgery can induce a degree of insomnia and thus we sought to identify quality of sleep on a postoperative general surgical ward and to identify common barriers to sleep and reasons patients experience interruptions to sleep. Methods Using patient questionnaires, we investigated quality of sleep and explored factors, both intrinsic and extrinsic, which influenced patients both falling asleep and being woken throughout the night. Results Average age of participants was 73yrs. Average length of sleep was only 5.4 hours. 89% patients reported having sleep interrupted throughout the night and on average patients were awoken 2.4 times throughout the night. Only 11% reported feeling refreshed in the morning after sleep. Noise and pain were the most common barriers identified to falling asleep affecting 73% of patients. The predominant reasons for being awoken from sleep were noise (94%), interruptions for observations/bloods (67%) and thirst (33%). Conclusions This study has identified a high prevalence of poor sleep quality in postoperative surgical patients. Common factors influencing this are noise, pain and interruptions by medical staff. Many of these can be addressed through simple interventions to promote better recovery of patients by recognising and supporting the need for high quality sleep.

Assessing the Relationship Between Sleep Duration and the Prevalence of Chronic Kidney Disease Among Veterans in the United States: A 2022 Behavior Risk Factor Surveillance System (BRFSS) Cross-Sectional Study.

Chronic kidney disease (CKD) is more prevalent among veterans in the United States than in the general population. Similarly, veterans also exhibit higher rates of abnormal sleep duration compared to the general population. The aim of this study was to investigate the association between self-reported length of sleep and the prevalence of CKD among veterans in the United States using responses from the 2022 Behavioral Risk Factor Surveillance System (BRFSS). For this cross-sectional study, a total of 53,211 veterans who responded to the 2022 BRFSS survey were analyzed. Measures include the outcome variable which is self-reported CKD diagnosis and a major independent variable sleep duration. Sleep duration was recategorized into ≤ 5 hours (short sleep duration), 6-10 hours (normal sleep duration), and >10 hours (long sleep duration). Covariates included gender, age, race, residence, insurance, alcohol consumption, diabetes comorbidity, coronary artery disease (CAD) comorbidity, and stroke comorbidity. Descriptive, bivariate, and multivariate logistic regressions were conducted using the SAS software (SAS Institute Inc., Cary, North Carolina, United States). Results: The prevalence of CKD among veterans in the United States is 3332 (6.29%). Veterans with sleep duration of 6-10 hours had 17.5% lower odds of CKD than veterans who slept for ≤5 hours (adjusted OR (AOR)= 0.825, 95%CI= 0.821-0.830; P=<0.0001). Veterans who slept for more than 10 hours had 68.2% higher odds of having CKD (AOR=1.682, 95%CI= 1.662-1.702; P=<0.0001). Additionally, veterans diagnosed with diabetes, stroke, and coronary artery disease had 2.447-2.103, and 2.838, respectively, higher odds of developing CKD (AOR=2.447, 95%CI= 2.435-2.459; p=<0.0001). Veterans who were 65 years and older had higher odds of developing CKD compared to those aged 35-44 years (AOR= 5.743, 95%CI= 5.669-5.818; P<0.001). The odds of having CKD were also higher among veterans who identified as Black (AOR 1.397, 95%CI =1.388-1.405; P<0.01) or as Hispanic (AOR =1.318, 95%CI = 1.307-1.329; P<0.01) compared to non-Hispanic White veterans. Those who identified as Asian had lower odds of CKD (AOR= 0.87, 95%CI=0.853-0.888; P<0.01). Furthermore, veterans who consumed alcohol had 7.8% lower odds of having CKD as compared to individuals who did not consume alcohol (AOR= 0.922, 95%CI =0.918-0.927; p=<0.0001). Male veterans had 24.7% lower odds of having CKD as compared to female veterans (AOR = 0.753, 95%CI= 0.747-0.758; P<0.001). Conclusion: This research provides evidence of a greater prevalence of CKD among veterans with short sleep duration (≤ 5 hours) and long sleep duration (> 10 hours). Sleep hygiene education and sleep optimization programs can improve sleep and boost overall kidney health among veterans.

Assessment of sedative activity of fraxin: In vivo approach along with receptor binding affinity and molecular interaction with GABAergic system.

Insomnia is a sleep disorder in which you have trouble falling and/or staying asleep. This research aims to evaluate the sedative effects of fraxin (FX) on sleeping mice induced by thiopental sodium (TS). In addition, a molecular docking study was conducted to investigate the molecular processes underlying these effects. The study used adult male Swiss albino mice and administered FX (10 and 20 mg/kg, i.p.) and diazepam (DZP) (2 mg/kg) either separately or in combination within the different groups to examine their modulatory effects. After a period of 30 min, the mice that had been treated were administered (TS: 20 mg/kg, i.p.) to induce sleep. The onset of sleep for the mice and the length of their sleep were manually recorded. Additionally, a computational analysis was conducted to predict the role of gamma-aminobutyric acid (GABA) receptors in the sleep process and evaluate their pharmacokinetics and toxicity. The outcomes indicated that FX extended the length of sleep and reduced the time it took to fall asleep. When the combined treatment of FX and DZP showed synergistic sedative action. Also, FX had a binding affinity of -7.2 kcal/mol, while DZP showed -8.4 kcal/mol. The pharmacokinetic investigation of FX demonstrated favorable drug-likeness and strong pharmacokinetic characteristics. Ultimately, FX demonstrated a strong sedative impact in the mouse model, likely via interacting with the GABAA receptor pathways.

Sleep health among youth outside of the gender binary: Findings from a national Canadian sample

ObjectivesSleep is important for adolescent health. The unique needs of suprabinary youth (youth with gender identities outside of the gender binary), along with the growing number of youth with these identities, underscores the need to better understand sleep health within this population. The current study’s objectives were to (1) examine differences in sleep health between suprabinary and binary youth and (2) explore how social support, peer victimization, and technology use accounted for these differences. MethodsData were drawn from the 2017/2018 Health Behavior in School Aged Children Survey. Adolescents (individuals ages 14 to 17, n = 10,186), indicated whether they were suprabinary (n = 182) or binary (n = 10,004), and completed measures of sleep health (difficulty falling asleep, difficulty staying awake, weekday and weekend sleep length), covariates (age, family affluence, race/ethnicity, depressive symptoms), as well as variables that may account for differences between suprabinary and binary youth (family, friend, and teacher support, as well as peer victimization, and technology use before bed). ResultsSuprabinary youth reported worse sleep health on all outcomes, and differences persisted for both difficulty falling asleep and weekday sleep hours accounting for covariates. Significant indirect effects between suprabinary status were observed across all sleep outcomes for family support and school climate. Indirect effects for sleep quality were also observed via peer victimization. ConclusionsFindings support the relevance of looking at basic health processes like sleep to better understand how the stressors associated with suprabinary status impact health outcomes among this vulnerable population.

Phytosterols in mountain cultivated ginseng, as master healthy ageing dietary supplement, activates steroid signaling in ageing Drosophila melanogaster

Mountain cultivated ginseng (MCG) is planted in mountain forests to simulate traditional wild ginseng; therefore, it has a greater pharmacological effect than cultivated ginseng (CG) in the garden; however, insufficient evidence confirms this theory. In light of the health-promoting and life-extending properties of ginseng, we analyzed the efficacy of MCG and CG. Initial observations revealed that the phytosterols content of MCG was higher than that of CG, with a positive correlation to the duration of growth. The distinction between phytosterols in MCG and in CG is predominately determined by the stigmasterol content using High-Performance Liquid Chromatography (HPLC). The lifespan of Drosophila melanogaster (fruit flies) that aged naturally was prolonged by phytosterols in MCG and CG and stigmasterols. Further, they prolonged healthy ageing as measured by progeny numbers, length of sleep, climbing distance, and survival following oxidative damage. The findings of behavioral observations revealed that phytosterols in MCG were more efficacious than in CG in promoting health maintenance and life extension; moreover, stigmasterol indicated that these effects were dose-dependent. Stigmasterols, phytosterols in MCG and CG have restored age-associated decreases in steroid hormone levels. Notably, molecular docking was predicted to promote stigmasterol's binding to the steroid hormone receptor ECR due to its similarity to steroid hormones. In addition, stigmasterols triggered the steroid hormone signaling pathway by increasing the activity of key genes Eip75B and Br in 20E signaling and Jhamt, HmGR, Met, and Kr-h1 in JH signaling. Phytosterols, as a natural product, regulated health and longevity as a dietary supplement similar to that of steroids, which supported the social requirements of healthy ageing.

Changes in the lifestyle of Polish students as a result of the COVID-19 pandemic in the light of direct research

The COVID-19 pandemic has caused significant changes in the lifestyles of all social groups. As a result of the subsequent restrictions resulting from the epidemic threat, all areas of both professional and private life had to be modified. Students were a social group whose lifestyle changes were particularly visible. For most of this period, universities conducted classes remotely, using Internet platforms. Therefore, it was necessary to make changes in the current way of life, often associated with a change of place of residence, modification of the way of spending free time and current habits. A significant part of these changes may be permanent and remain after the end of the pandemic state or threat. The aim of the paper is to analyze the changes in the lifestyle of Polish students in the light of our own surveys addressed to them. The students’ opinions on the changes in the way of acquiring and testing knowledge, in relations with the university and peers, and in the process of communicating with them will be presented and critically assessed. Changes in the process of nutrition, healthcare, including the length of sleep and physical activity, and the pursuit of one’s own interests will also be taken into account. The conclusions of the research will be confronted with the results of other studies and analyses devoted to various problems of lifestyle changes under the influence of COVID-19.

The Impact of Yoga on Athletes' Mental Well-Being: An Experimental Study.

Background Athletes have a variety of obstacles that might shrink their chances of getting adequate rest, including competing and training times, travel, stress, academic responsibilities, and overtraining. Furthermore, athletes have been reported to have poor self-reports of their sleep length and quality. The study aims to assess the impact of yoga practice on sleep quality, stress, anxiety, psychological rigidity, and experience avoidance. Methods A pre- and post-testrandomized design was applied for the research. Forty-four recreational athletes (age 18-45 years)were selected per the inclusion criteria from the athletes studying at Banaras Hindu University. Exclusion criteria are a likely severe psychiatric disorder, chronic illness, substance abuse, disability, endocrine or metabolic disorders, and history of using psychotropic drugsand smoking. The Yogic intervention contains the Pranayama and meditation, which was practiced for six weeks in the intervention group. Outcome variables were stress, sleep, anxiety, mindfulness, psychological rigidity, and experience avoidance. The Perceived Stress Scale (PSS), Pittsburgh Sleep Quality Index (PSQI),Sport Competition Anxiety Test, Mindful Attention AwarenessScale (MAAS), and Acceptance and Action Questionnaire-II (AAQ-II) were applied to measure the outcomes. Results The majority of the participants(30 (68%)) were male, and 44 (100%) had more than two years of sports experience. Of the participants, 18 (40.90%) had a habit of 3-5 hours of internet surfing. We noticed that there was a significant mean difference from pre- to post-intervention in terms of stress, sleep, anxiety, mindfulness, psychological rigidity, and experience avoidance (p < 0.0001). Conclusion The results concluded positive effects of yoga on athletes' stress, sleep, anxiety, mindfulness, psychological rigidity, and experience avoidance in athletes.Stress alleviationand reduced anxiety are the strongest predictors of improving psychological flexibility skills in athletes' daily lives. Improving mindfulness and supporting good sleep patternscould be good indicators of improving psychological rigidity and experience avoidance.

Internet Addiction among Egyptian Teens during COVID-19 Pandemic

BACKGROUND: Teens’ lifestyles have changed significantly during and after COVID-19 epidemic and they have started engaging in risky health behaviors like using smartphone more frequently. Everyone is compelled to use their smartphone more frequently than usual to access daily necessities during the COVID-19 pandemic lockdown. AIM: We aimed to evaluate the problem of internet addiction and the increasing use of smartphone among teenage Egyptian youth during COVID-19 pandemic. METHODS: Online surveys were sent to Egyptian teens (12–18 years old) in several governorates in June 2020, and they were completed by 154 youths over the course of one month. Different teenagers were required to respond to and share in this poll, and versions in both English and Arabic were used. At the outset of the questionnaire, the question about consent was viewed as mandatory. The extent of Internet use was evaluated using Young’s Internet Addiction Test (IAT). The survey was divided into four sections and created with the goals of understanding the modes (frequency, patterns, and goals) of internet use, the negative effects, linked parental behaviors, as well as the eventual occurrence and severity of addiction. The same data from the time before the epidemic was also looked into and analyzed. Version 23 of IBM SPSS Statistics was used for the analysis. The p-value threshold for significance was established at 0.05. RESULTS: The mean age of the teens was 14.38 ± 2.87 years and equal gender frequency (males of 50.6% and females of 49.4%. About 79.9% of them live in urban environment, 18.8% suffered from family problems and 40.9% were in the secondary educational level. Increased physical inactivity of participants was noticed after COVID-19 among participants (55.8%). About 87.7% of them used smartphone for online access (87.7%). Half of the subjects (50%) spent 1–3 h online before COVID, while more than half of them (59.1%) spent more than 6 hours online after COVID, with a statistically significant difference. Mean IAT was 61.91 ± 16.77 after COVID versus 45.26 ± 12.45 before COVID. The prevalence of internet addiction was increased from 67.5% before COVID-19 to 77.9% after COVID-19 infection. IAT score was normal, mild, moderate, and severe in 5.8%, 16.2%, 65.6%, and 12.3% after COVID-19, respectively, compared to normal, mild, moderate, and severe IAT score in 26.6%, 5.8%, 61.0%, and 6.5% before COVID, respectively, with significant differences between them before and after COVID (p &lt; 0.000). Increasing mother’s and father’s educational, increasing time spent online, decreasing duration of sleep, and lower the number of days of exercise for more than 30 min/week were associated with higher IAT score. CONCLUSIONS: During the COVID-19 pandemic, internet addiction was extremely common among teenagers (77.9%). The amount of time spent online, the length of sleep, and the number of days that a person exercises for more than 30 min/week were all predictors of addiction.

Association Between Gastrointestinal and Sleep Problems in the General Population of Japan: A Cross-Sectional Community-Based Observational Study.

Background and aim Poor sleep is known to be associated with functional gastrointestinal (GI) problems in the general population, but the exact mechanisms underlying the relationship remainunclear. Deeper insights into the exact mechanisms underlying the connection may benefit individuals suffering from these conditions without efficient treatments. Therefore, this study investigated the association between functional GI symptom levels and sleep-related characteristics in the general population of Japan. Methods In this cross-sectional questionnaire-based observational study, data including the self-reported levelof poor sleep and functional GI symptoms in the last one month were collected fromconsecutive individuals who visited a hospital in Miyagi Prefecture, Japan, for regular medical checkups between April 2020 and March 2023. The levels of other physical and mental conditions, such as stress at home, fatigability, irritability, thermoregulatory problems, and edema in the limbs, were measured with an 11-point Numerical Rating Scale (NRS) between 0 and 10. Additional sleep-related specific information, such as sleep length, wake-up time, bedtime, trouble falling asleep, and nocturnal awakening, were further collected. Correlations with functional GI symptoms in these characteristics were evaluated by bivariate correlation analyses and generalized regression analyses. Results A total of 151 consecutive adults aged ≥18 years (77 males and 74 females) participated in this study. In bivariate correlation analyses, chronic GI symptom levels were significantly correlated with stress at home (p=0.0005), fatigability (p=0.0008), irritability (p=0.0022), edema in the limbs (p<0.0001), and sleep problem (p<0.0001). In the following generalized regression analysis, significant correlations with GI symptom levels were observed in sleep problems (p=0.0042) and edema in the limbs (p=0.0256). Further bivariate correlation analyses using sleep-related subscales revealed that trouble falling asleep in bed (p=0.0001), midnight awakening (p=0.0143), and wakeup time (p=0.0465) were correlated with GI symptom levels. In the following generalized regression analysis, a significant correlation withGI symptom levels was observed in trouble falling asleep (p=0.0239). Conclusion Functional GI symptoms in the general population of Japan were associated with poor sleep, even after adjusting for daily stress and irritability levels. Among the sleep-related characteristics, trouble falling asleep was associated with GI dysfunctions. Assessing sleep-related information and achieving good sleep quality with smooth sleep induction may be a clue to relieving GI dysfunctions with uncertain causes.

The Prevalence of Insomnia Among Patients With Chronic Tinnitus in the General Population of the Kingdom of Saudi Arabia.

Tinnitus is a perception of sound without external sound stimulation. Subjective tinnitus is the most common type and is unrelated to external sounds. It is a symptom, not an illness, and is often linked to various psychological factors like anxiety and depression. Insomnia is a personal sense of difficulty falling asleep and issues with sleep initiation, length, consolidation, or quality while having ample chance to sleep, which impairs one's ability to function during the day. Sleep problems are prevalent in individuals with chronic tinnitus. We aimed to assess insomnia prevalence in chronic tinnitus patients in Saudi Arabia. Our study, an online cross-sectional survey, included 434 Saudi participants with chronic insomnia, utilizing a Google Forms questionnaire (Google LLC, Mountain View, California, United States). A total of 434 participants responded to the online survey. The most represented age group was 18-25 years, and 319 (73.5%) of the respondents were female. Approximately one-third (34.6%, n=150) were from the southern region. In the sample, 184 (42.4%) participants had bilateral tinnitus, and 105 (24.2%) had had tinnitus for over two years. Around 62.7% of the participants suffered from insomnia due to tinnitus. In terms of sleep quality, 174 (40.1%) participants took over 40 minutes to fall asleep, 85 (19.5%) were often afraid to sleep due to disturbed sleep, and 63 (14.5%) frequently used sleep pills. Our study of over 400 Saudi chronic tinnitus patients revealedthat a large percentage of tinnitus patients have insomnia, influenced by geographic region and tinnitus duration. Our findings offer valuable insights, emphasizing the necessity for additional research to inform interventions aimed at enhancing the quality of life of individuals with chronic tinnitus.

Quick returns, sleep, sleepiness and stress - An intra-individual field study on objective sleep and diary data.

Quick returns (<11 hours of rest between shifts) have been associated with shortened sleep length and increased sleepiness, but previous efforts have failed to find effects on sleep quality or stress. A shortcoming of most previous research has been the reliance on subjective measures of sleep. The aim of this study was to combine diary and actigraphy data to investigate intra-individual differences in sleep length, sleep quality, sleepiness, and stress during quick returns compared to day-day transitions. Of 225 nurses and assistant nurses who wore actigraphy wristbands and kept a diary of work and sleep for seven days, a subsample of 90 individuals with one observation of both a quick return and a control condition (day-day transition) was extracted. Sleep quality was assessed with actigraphy data on sleep fragmentation and subjective ratings of perceived sleep quality. Stress and sleepiness levels were rated every third hour throughout the day. Shifts were identified from self-reported working hours. Data was analyzed in multilevel models. Quick returns were associated with 1 hour shorter sleep length [95% confidence interval (CI) -1.23- -0.81], reduced subjective sleep quality (-0.49, 95% CI -0.69- -0.31), increased anxiety at bedtime (-0.38, 95% CI -0.69- -0.08) and increased worktime sleepiness (0.45, 95%CI 0.22- 0.71), compared to day-day transitions. Sleep fragmentation and stress ratings did not differ between conditions. The findings of impaired sleep and increased sleepiness highlight the need for caution when scheduling shift combinations with quick returns.

Impact of Stress on the Sleep Pattern and Cognitive Performance on Young Adults

Abstract: This research paper investigates the intricate relationship between stress, sleep patterns, and cognitive performance among young adults. In today's world, stress is a common occurrence that has a significant impact on people's physical and mental health as well as their cognitive abilities. The purpose of this study is to clarify how stress affects young people' sleep patterns and cognitive function, as they are a group that is more susceptible to changes in sleep and cognition caused by stress. The study looks at how stress affects many areas of cognitive performance, including attention, memory, problem-solving, and decision-making, as well as the length, quality, and architecture of sleep. It does this by drawing on current literature and empirical studies. The study also examines possible mechanisms, such as neuroendocrine reactions, changes in brain connections, and psychological elements like perceived control and coping mechanisms, that may underlie the observed effects of stress on sleep and cognition. Furthermore, the paper discusses the bidirectional relationship between stress, sleep, and cognitive performance, highlighting the complex interplay between these domains and their cumulative impact on young adults' overall well-being. The findings of this study have implications for public health campaigns, clinical practices, and preventative treatments targeted at reducing the negative effects of stress on sleep and cognition, building resilience, and encouraging young adults to operate cognitively at their best

Vitamin D Deficiency Exacerbates Poor Sleep Outcomes with Endocrine-Disrupting Chemicals Exposure: A Large American Population Study.

Phthalates and bisphenol A are recognized as the predominant endocrine-disrupting substances (EDCs) in the environment, but their impact on sleep health remains unclear. Vitamin D has often been reported to play a role in sleep health and may be affected by endocrine-disrupting compounds. The study utilized data from 5476 individuals in the NHANES project to investigate the correlation between combined exposure to environmental EDCs and sleep duration through modeling various exposures. Furthermore, it emphasizes the importance of vitamin D in the present scenario. Preliminary analyses suggested that vitamin D-deficient individuals generally slept shorter than individuals with normal vitamin D (p < 0.05). Exposure to Mono-ethyl phthalate (MEP), triclosan (TRS), and Mono-benzyl phthalate (MZP), either alone or in combination, was associated with reduced sleep duration and a greater risk of vitamin D deficiency. Individuals with low vitamin D levels exposed to TRS experienced shorter sleep duration than those with normal vitamin D levels (p < 0.05). TRS and MZP were identified as crucial factors in patient outcomes when evaluating mixed exposures (p < 0.05). The results provide new data supporting a link between exposure to EDCs and insufficient sleep length. Additionally, they imply that a vitamin D shortage may worsen the sleep problems induced by EDCs.

The association between sleep duration, bedtime, and cognitive ability in Chinese adults: Evidence from the China family panel studies

IntroductionDementia is marked by a steady decline or worsening in cognitive abilities, affecting memory, logic, and social competencies. While many studies suggest a potential link between the amount of sleep and dementia risk, the outcomes are not yet consistent. This research delved into the relationship between sleep length and bedtime on cognitive abilities using an extensive dataset from the China Family Panel Studies (CFPS) from 2014 to 2020. MethodsData from 175,702 observations were collected, including cognitive function test data from 22,848 participants. Various cognitive tests were used to assess cognitive function. Restricted cubic spline (RCS) models were used for data analysis. ResultsThe optimal sleep duration for cognitive function was found to be 6–7 h, and the optimal bedtime was generally between 22:00–23:00. Longitudinal analysis revealed that sleep duration four years prior had a significant impact on current cognitive function. After accounting for various factors, those who slept for 7–8 h and over 8 h displayed lower cognitive function scores. Conversely, individuals sleeping less than 6 h had higher scores on the Vocabulary Test. Bedtime before 22:00 was associated with lower scores on the Vocabulary Test and Mathematical Test. Subgroup analyses based on age, gender, and urban residence showed variations in optimal sleep duration for different populations. Propensity Score Matching (PSM) analysis supported the findings. ConclusionsMaintaining a sleep duration of 6–7 h and a regular bedtime between 22:00–23:00 is important for optimizing cognitive performance.

E-cigarettes – influence on our bodies and sports performance

E-cigarettes are widely regarded as seemingly safe way to take nicotine. Advertised as products devoid of the harmful effects of traditional cigarettes, for many years have been increasing in popularity among younger generation, including budding athletes. The purpose of this paper is to summarize and discuss the growing number of scientific publications published recently regarding harmful effects of vaporizers use on the body, especially among young people, including athletes. Without sufficient knowledge of the dangers of e-cigarette use, they require substantive support from their guardians, tutors and coaches. Learning about the consequences of e-cigarette use on the cardiovascular system, the respiratory system, quality and length of sleep and athlete’s recovery, as well as the results of research on the impact of e-cigarette use on athletic performance, will be invaluable support for those responsible for the health education of today’s youth. It can also make budding athletes rethink their previous harmful habits, often resulting from the belief that e-cigarette use is not very harmful. In this paper, we will try to prove the falsity of the myths created by the media and popular culture about the use of e-cigarettes, enabling athletes to make an informed decision about the use of this product based on knowledge of the dangers of electronic cigarettes and the potential impact of using these devices on sports performance.

Sex differences in cognitive function trajectories and their determinants in older adults: Evidence from the Chinese longitudinal healthy longevity survey.

To examine sex differences in the cognitive trajectories of a nationally representative sample of older people living in China and to explore potential determinants of these trajectories. The study included 2230 women and 2171 men who were cognitively healthy and aged over 60 at the first observation from the Chinese Longitudinal Healthy Longevity Survey based on the 2008-2018 cohort. Cognitive function was measured using the Chinese version of the Mini-Mental State Examination (MMSE). Group-based trajectory modeling was used to identify potential heterogeneity of longitudinal changes over the 10years in each gender. Logistic regression was used to investigate associations between baseline characteristics (age, education, fertility history, sleep length, physical activity, and health status and behaviors) and trajectory classes. Three trajectories (labeled stable, slow decline, and rapid decline) were identified according to the changes in MMSE scores for both women and men. For the women, both the slow and rapid decline groups accounted for a larger proportion (14.7% and 11.0%, respectively) than the male decline groups (8.1% and 6.6%, respectively), and the women had a lower baseline MMSE score with a faster decline. In the multivariable logistic regression analyses, older age, less education, older age at first birth, poorer functional abilities, hearing impairment, and lower baseline MMSE scores were significantly associated with cognitive decline in both the female and male groups compared to the stable group. For the women, sleeping over 9h was also associated with a rapid cognitive decline trajectory, while current exercise and being overweight/obese were protective factors against cognitive decline. The women had an overall more serious cognitive decline than men. The potential determinants of cognitive decline identified in this study could be considered for developing specific intervention strategies aimed at promoting a healthy brain and preventing cognitive decline in different sexes, especially in low-income and developing countries.

The Impact of Education Level on Individual Lifestyle Behaviors among Dietetics Students and Professionals.

Lifestyle and habits are acquired in the family environment and then shaped by the potential influence of the environment and received education. In recent years, there has been growing interest in understanding the relationship between sleep and dietary behaviors in various health professionals, including medical and dietetics professionals and students, as well as their self-perceived knowledge and attitudes. Despite the importance of this topic, there is a lack of research on the assessment of individual behaviors in dietetics students and professionals. The aim of this study was to assess the impact of education level on individual behaviors regarding nutrition, sleep, and physical activity in dietetics students and professionals. 71 dietetics students and professionals were enrolled in this study. Their overall knowledge, sleep, and nutritional behavior were assessed with a validated Questionnaire of Eating Behaviors at the beginning of their dietetics university education and then prospectively after a year. It was also compared to dieticians who already graduated. The analysis showed that the educational level did not correlate with sleep length or the physical activity level. However, the educational level was correlated with dietary knowledge and properly self-assessed by the participants. Significant differences were observed in both the prospective and comparative analyses. The educational level and knowledge were not correlated with eating behaviors. The self-assessment of nutritional behaviors also did not correlate with the objective assessment. Sleep length did not correlate with BMI, but it was inversely correlated with overall and healthy diet scores and knowledge levels. On the other hand, physical activity levels were positively correlated with healthy diet scores. Dietary education results in better nutritional knowledge; however, it does not significantly impact individual nutritional behaviors among dietetics students and professionals. Moreover, the inverse relationship between sleep length and nutritional knowledge and behaviors, as well as the positive relationship between physical activity level and dietary behaviors, shows that nutritional aspects of lifestyle are probably prioritized among dietetic students and professionals, with an acknowledgment of the role of physical activity and a neglect of sleep hygiene importance. Dietetics students should be advised to use their theoretical knowledge not only to guide their patients but also to implement it in their own lives.

Predictors of sleep quality components in patients undergoing transarterial chemoembolisation: a cross-sectional study.

Patients undergoing transarterial chemoembolisation experience postembolisation symptoms and interferences affecting sleep quality, which require intervention. The study aimed to identify the predictors of sleep quality components in patients undergoing transarterial chemoembolisation. This study included two groups of participants: 50 patients undergoing transarterial chemoembolisation and 45 nurses caring for them. Data were collected from September to November 2022 using a structured questionnaire, and analysed using descriptive statistics, the t-test, analysis of variance, Spearman's rank correlation, and multiple regression analysis using the SPSS 27.0 program (IBM Corp., Armonk, NY, USA). The mean sleep quality score was 40.28±14.10. Heat sensation (t=-2.08, p=.043) and fatigue (t=-4.47, p<.001) predicted sleep fragmentation in 38.6% of the patients. Abdominal pain (t=-2.54, p=.014), vomiting (t=-2.21, p=.032), and the expected fatigue by the nurses (t=2.68, p=.014) predicted sleep length in 41.7% of patients. Abdominal pain (t=-2.05, p=.046) explained 42.9% of sleep depth. Based on the predictors of sleep quality components obtained in this study, strategies to improve sleep quality tailored to patients undergoing transarterial chemoembolisation should be developed. This study highlighted the need to bridge the gap between patients' and nurses' expected fatigue and its contribution to sleep fragmentation and sleep length. It also highlighted the importance of noncontact temperature measurement, controlling vomiting, and pain relief for improving sleep length in patients undergoing transarterial chemoembolisation.