The effect of chronotype and social jetlag on sleep, mental health, quality of life, and academic performance of medical students

Moon, Hoseok; Yoo, Seung Jin; Cho, Y.W.

doi:10.1016/j.jns.2017.08.841

Cited by 3 publications

(2 citation statements)

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“…Previous studies revealed that shift workers that experience SJL are also characterized by short sleep duration and low sleep quality [70,71]. In case of poor quality, sleep might exert a lower restorative capacity that could explain why people who experience SJL tend to be less alert, more fatigued, less prompt to wake up in the morning, and perform worse in academia or the workplace than those who do not experience SJL [72][73][74][75][76].…”

Section: Impaired Sleep and Cognitive Performancementioning

confidence: 99%

Social Jetlag and Related Risks for Human Health: A Timely Review

et al. 2021

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The term social jetlag is used to describe the discrepancy between biological time, determined by our internal body clock, and social times, mainly dictated by social obligations such as school or work. In industrialized countries, two-thirds of the studying/working population experiences social jetlag, often for several years. Described for the first time in 2006, a considerable effort has been put into understanding the effects of social jetlag on human physiopathology, yet our understanding of this phenomenon is still very limited. Due to its high prevalence, social jetlag is becoming a primary concern for public health. This review summarizes current knowledge regarding social jetlag, social jetlag associated behavior (e.g., unhealthy eating patterns) and related risks for human health.

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Section: Impaired Sleep and Cognitive Performancementioning

confidence: 99%

Social Jetlag and Related Risks for Human Health: A Timely Review

et al. 2021

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“…This holds true also for young school children. Due to poor sleep quality, social jetlagged people tend to be fatigued more often and have poor alertness with overall poor performance in school or workplace than people with healthy sleep quality ( Haraszti et al , 2014 ; Moon et al , 2017 ; Yong et al , 2016 ). Chronic sleep deprivation in social jetlagged people can further impinge into mental health issues (reviewed in ( Henderson et al , 2019 )).…”

Section: Desynchrony Between External and Internal Rhythmsmentioning

confidence: 99%

Different levels of circadian (de)synchrony – where does it hurt?

et al. 2023

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A network of cellular timers ensures the maintenance of homeostasis by temporal modulation of physiological processes across the day. These so-called circadian clocks are synchronized to geophysical time by external time cues (or zeitgebers). In modern societies, natural environmental cycles are disrupted by artificial lighting, around-the-clock availability of food or shift work. Such contradictory zeitgeber input promotes chronodisruption, i.e., the perturbation of internal circadian rhythms, resulting in adverse health outcomes. While this phenomenon is well described, it is still poorly understood at which level of organization perturbed rhythms impact on health and wellbeing. In this review, we discuss different levels of chronodisruption and what is known about their health effects. We summarize the results of disrupted phase coherence between external and internal time vs. misalignment of tissue clocks amongst each other, i.e., internal desynchrony. Last, phase incoherence can also occur at the tissue level itself. Here, alterations in phase coordination can emerge between cellular clocks of the same tissue or between different clock genes within the single cell. A better understanding of the mechanisms of circadian misalignment and its effects on physiology will help to find effective tools to prevent or treat disorders arising from modern-day chronodisruptive environments.

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COVID-19-mandated social restrictions unveil the impact of social time pressure on sleep and body clock

Korman

Tkachev²,

Reis

et al. 2020

Sci Rep

131

120

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In humans, sleep regulation is tightly linked to social times that assign local time to events, such as school, work, or meals. The impact of these social times, collectively—social time pressure, on sleep has been studied epidemiologically via quantification of the discrepancy between sleep times on workdays and those on work-free days. This discrepancy is known as the social jetlag (SJL). COVID-19-mandated social restrictions (SR) constituted a global intervention by affecting social times worldwide. We launched a Global Chrono Corona Survey (GCCS) that queried sleep–wake times before and during SR (preSR and inSR). 11,431 adults from 40 countries responded between April 4 and May 6, 2020. The final sample consisted of 7517 respondents (68.2% females), who had been 32.7 ± 9.1 (mean ± sd) days under SR. SR led to robust changes: mid-sleep time on workdays and free days was delayed by 50 and 22 min, respectively; sleep duration increased on workdays by 26 min but shortened by 9 min on free days; SJL decreased by ~ 30 min. On workdays inSR, sleep–wake times in most people approached those of their preSR free days. Changes in sleep duration and SJL correlated with inSR-use of alarm clocks and were larger in young adults. The data indicate a massive sleep deficit under pre-pandemic social time pressure, provide insights to the actual sleep need of different age-groups and suggest that tolerable SJL is about 20 min. Relaxed social time pressure promotes more sleep, smaller SJL and reduced use of alarm clocks.

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The effect of chronotype and social jetlag on sleep, mental health, quality of life, and academic performance of medical students

Cited by 3 publications

References 0 publications

Social Jetlag and Related Risks for Human Health: A Timely Review

Social Jetlag and Related Risks for Human Health: A Timely Review

Different levels of circadian (de)synchrony – where does it hurt?

COVID-19-mandated social restrictions unveil the impact of social time pressure on sleep and body clock

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The effect of chronotype and social jetlag on sleep, mental health, quality of life, and academic performance of medical students

Cited by 3 publications

References 0 publications

Social Jetlag and Related Risks for Human Health: A Timely Review

Social Jetlag and Related Risks for Human Health: A Timely Review

Different levels of circadian (de)synchrony ­– where does it hurt?

COVID-19-mandated social restrictions unveil the impact of social time pressure on sleep and body clock

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Product

Resources

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Different levels of circadian (de)synchrony – where does it hurt?