STUDY OBJECTIVES: Social jetlag manifests as a difference in sleep timing on workdays and free days. Social jetlag is often associated with shorter, lower-quality sleep, so it is unclear how much the chronic circadian misalignment contributes to observed negative health outcomes. We aimed to (1) investigate associations between social jetlag, chronotype (one of its determinants), and the levels of health markers, (2) describe factors associated with social jetlag, and (3) examine whether working from home can reduce social jetlag. METHODS: Adult respondents participated in a nationally representative longitudinal survey of Czech households (individuals in each wave: n2018/19/20 = 5132/1957/1533), which included Munich ChronoType Questionnaire to evaluate chronotype and social jetlag. A subset provided blood samples (n2019 = 1957) for detection of nine biomarkers and was surveyed in three successive years (social jetlag calculated for n2018/19/20 = 3930/1601/1237). Data were analyzed by nonparametric univariate tests and mixed effects multivariate regression with social jetlag, chronotype, sex, age, body-mass index, and reported diseases as predictors and biomarker levels as outcomes. RESULTS: Higher social jetlag (≥0.65 h) was significantly associated with increased levels of total cholesterol and low-density lipoprotein cholesterol, particularly in participants older than 50 years (Mann-Whitney, men: pCHL = 0.0005, pLDL = 0.0009; women: pCHL = 0.0079, pLDL = 0.0068). Extreme chronotypes were associated with cardiovascular disease risk markers regardless of social jetlag (Kruskal-Wallis, p < 0.0001). Commuting to work and time stress were identified as important contributors to social jetlag. Individual longitudinal data showed that working from home decreased social jetlag and prolonged sleep. CONCLUSIONS: We report significant associations between sleep phase preference, social jetlag, and cardio-metabolic biomarkers.
- MeSH
- biologické markery MeSH
- cholesterol MeSH
- cirkadiánní rytmus * MeSH
- dospělí MeSH
- jet lag syndrom MeSH
- lidé MeSH
- metabolické nemoci * komplikace MeSH
- průzkumy a dotazníky MeSH
- spánek MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- MeSH
- cestování MeSH
- cestovní nemoci MeSH
- lidé MeSH
- vakcinace * metody MeSH
- vakcíny proti horečce dengue imunologie MeSH
- vakcíny proti virové hepatitidě farmakologie MeSH
- vakcíny ekonomika imunologie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- novinové články MeSH
- Geografické názvy
- Česká republika MeSH
- MeSH
- amébiáza přenos terapie MeSH
- cestování MeSH
- cestovní nemoci MeSH
- cysticerkóza diagnóza přenos terapie MeSH
- giardiáza diagnóza přenos terapie MeSH
- leishmanióza diagnóza terapie MeSH
- lidé MeSH
- malárie etiologie přenos terapie MeSH
- parazitární nemoci * MeSH
- schistosomóza etiologie přenos terapie MeSH
- trypanozomiáza diagnóza etiologie terapie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- přehledy MeSH
Previous research has shown that sleep deprivation, low quality sleep or inconvenient sleeping times are associated with lower quality of life. However, research of the longitudinal effects of sleep on quality of life is scarce. Hence, we know very little about the long-term effect of changes in sleep duration, sleep quality and the time when individuals sleep on quality of life. Using longitudinal data from three waves of the Czech Household Panel Study (2018-2020) containing responses from up to 4,523 respondents in up to 2,155 households, the study examines the effect of changes in sleep duration, sleep quality and social jetlag on satisfaction with life, happiness, work stress, subjective health and wellbeing. Although sleep duration and timing are important, panel analyses reveal that sleep quality is the strongest predictor of all sleep variables in explaining both within-person and between-person differences in quality of life indicators.
- MeSH
- jet lag syndrom MeSH
- kvalita spánku MeSH
- kvalita života * MeSH
- lidé MeSH
- průzkumy a dotazníky MeSH
- spánek * fyziologie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
Dostatečně dlouhý a kvalitní spánek je zásadní pro udržení dlouhého zdraví, schopnost učit se novým věcem a předcházení civilizačních onemocnění. Nadměrná stresová zátěž a mnoho pracovních a studijních povinností může vést k snížení množství potřebného spánku. V rámci našeho šetření jsme se rozhodli zmapovat délku spánku u studentů Univerzity obrany a zhodnotit jejich spánkové zvyklosti vzhledem k tomu, že mimo své studijní povinnosti jsou také zatížení vojenskými povinnostmi, a tato zátěž se může projevovat nevhodnými spánkovými zvyklostmi. Pro náš výzkum byly stanoveny tři otázky:1) Zjistit, jak dlouho studenti Univerzity obrany spí v pracovních a nepracovních dnech a zda se tato průměrná délka mezi sebou liší.2) Zda existují rozdíly mezi průměrnou délkou spánku mezi ženami a muži na Univerzitě obrany.3) Zda studenti spí tak dlouho, jak uvádějí, že potřebují. Data byla následně zhodnocena.
Sufficiently long and quality sleep is essential for maintaining long-term health, the ability to learn new things and prevent of civilization diseases. Excessive stress and many work and study responsibilities can lead to the reduction of sleep needed. Within our investigation, we decided to chart the length of sleep at the students of the University of Defense and asses their sleep habits considering, besides their study duties, also the loading by military duties and this load may lead to inappropriate sleep habits. Three questions were asked for our research:1) To Find out how long the University of Defense students sleep on working and non-working days and whether this average length differs.2) If there are differences between the average women ́s and men ́s length of sleep at the University of Defense.3) Whether the students sleep as long as they say they need to. The following data were subsequently evaluated.
- MeSH
- délka spánku * MeSH
- jet lag syndrom MeSH
- lidé MeSH
- průzkumy a dotazníky MeSH
- spánek MeSH
- statistika jako téma MeSH
- studenti MeSH
- univerzity MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Geografické názvy
- Česká republika MeSH
OBJECTIVE: Over the past decade, concurrent with increasing social media use (SMU), there has been a shift toward poorer sleep among adolescents in many countries. The purpose of this study was to examine the cross-national associations between adolescent SMU and sleep patterns, by comparing 4 different categories of SMU (nonactive, active, intense, and problematic use). DESIGN, SETTING, AND PARTICIPANTS: Data were from 86,542 adolescents in 18 European and North American countries that participated in the 2017/18 Health Behaviour in School-aged study. MEASUREMENTS: Mixed-effects linear regression models were used to examine cross-national associations between 4 SMU categories and adolescent sleep duration, bedtime and social jetlag derived from self-reported data. RESULTS: For all countries combined, nonactive SMU was associated with longer sleep, earlier bedtimes, and less social jetlag, compared to active SMU, although the differences were minor. By comparison, intense and problematic SMU were associated with less sleep and later bedtimes on both school and nonschool days, and greater social jetlag, compared to active SMU. While findings were relatively consistent between countries, some differences were observed, suggesting that the national and cultural context may be important in interpreting results. CONCLUSIONS: These findings suggest that both intense and problematic SMU are associated with poorer sleep patterns in adolescents across most countries. Further research is needed to identify effective policies, programs, and messaging to promote the healthy use of social media and prevent potential negative impacts on adolescent sleep.
Circadian preferences are frequently used as a synonym for chronotype. Both terms are based on different principles and are measured by a variant questionnaire. We focused on circadian preferences, delimited as an individual preference for the timing of various activities, and their relationship to the selected sociodemographic factors. All participants (n = 2068) filled out online questionnaires including MEQ, MCTQ, and sociodemographic information (age, sex, place of residence, marital status, childcare, education, financial security, physical and mental health). Although the concept of chronotype and circadian preference differ, the mutual correlation was high. Our results of the observed variables are similar to other studies. We revealed evening preference is related to a higher probability of living in a big city, having a single life, a higher risk of smoking, worse health status, and worse financial security. We observed a higher social jet lag among them. Our research complies with previous studies, which found that in some areas, people with evening preferences evince worse results. Due to the evening preference, these people are at a disadvantage, and the society's setting for morning operations can lead to a deepening of these differences. We recommend further research, which would focus on the practical application of results to the everyday life of participants to create preventive programs aimed at reducing the negative impact of evening preferences on life.
- MeSH
- cirkadiánní rytmus * MeSH
- jet lag syndrom MeSH
- lidé MeSH
- průzkumy a dotazníky MeSH
- spánek * MeSH
- životní styl MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
Onkologičtí nemocní mají zvýšené riziko infekčních komplikací, jehož hlavní příčinou je imunodeficitní stav vyvolaný samotným nádorovým onemocněním i jeho terapií. Proto je vhodné pacienty chránit očkováním, zejména vakcinací proti chřipce, pneumokokovým nákazám a onemocnění covid-19. Vhodně zvolené vakcíny a správné načasování jejich podání mohou v rámci podpůrné léčby přispět k úspěchu onkologické terapie.
Cancer patients have an increased risk of infectious complications, the main cause of which is an immunodeficiency condition caused by the cancer itself and its therapy. Therefore, it is appropriate to protect patients by vaccination, in particular vaccination against influenza, pneumococcal infections and covid-19. Appropriately chosen vaccines and the right timing of their administration can as a part of supportive care contribute to the success of cancer therapy.
- MeSH
- antitumorózní látky imunologie škodlivé účinky MeSH
- cestovní nemoci MeSH
- hostitel s imunodeficiencí imunologie MeSH
- inhibitory kontrolních bodů imunologie škodlivé účinky MeSH
- lidé MeSH
- nádory * imunologie MeSH
- pneumokokové vakcíny terapeutické užití MeSH
- splenektomie MeSH
- transplantace hematopoetických kmenových buněk MeSH
- vakcinace * metody MeSH
- vakcíny proti chřipce terapeutické užití MeSH
- vakcíny proti COVID-19 terapeutické užití MeSH
- Check Tag
- lidé MeSH
- MeSH
- antiinfekční látky terapeutické užití MeSH
- cestovní nemoci * MeSH
- Escherichia coli patogenita účinky léků MeSH
- lidé MeSH
- parazitární nemoci střev farmakoterapie terapie MeSH
- probiotika terapeutické užití MeSH
- průjem * etiologie prevence a kontrola terapie MeSH
- rehydratační roztoky terapeutické užití MeSH
- rizikové faktory MeSH
- rotavirové infekce terapie MeSH
- Check Tag
- lidé MeSH
