Seven-year survey of sleep timing in Russian children and adolescents: chronic 1-h forward transition of social clock is associated with increased social jetlag and winter pattern of mood seasonality

Borisenkov, Mikhail F.; Tserne, Tatyana A.; Panev, Alexander S.; Kuznetsova, E.S.; Petrova, Natalia B.; Timonin, Vladimir D.; Коломейчук, С. Н.; Виноградова, И. А.; Kovyazina, M.; Khokhlov, Nikita A.; Kosova, Anna; Kasyanova, Olga N.

doi:10.1080/09291016.2016.1223778

Cited by 40 publications

(36 citation statements)

References 16 publications

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“…The last fallacy concerns the interpretation of data in a paper published by Russian researchers analyzing the three different social clock constructs in Russia’s recent history (Borisenkov et al, 2017): the traditional DST pattern of usage in only some months of the year, the extension of DST to the entire year (which was abandoned after 4 years) and the subsequent permanent Standard Time (which the government finally adopted after going through these different nation-wide “experiments”). The researchers showed that SJL gradually increased from perennial Standard Time to traditional DST/Standard Time switching to perennial DST.…”

Section: Myth-understandings and Confusions Surrounding Dstmentioning

confidence: 99%

Daylight Saving Time and Artificial Time Zones – A Battle Between Biological and Social Times

2019

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Many regions and countries are reconsidering their use of Daylight Saving Time (DST) but their approaches differ. Some, like Japan, that have not used DST over the past decades are thinking about introducing this twice-a-year change in clock time, while others want to abolish the switch between DST and Standard Time, but don’t agree which to use: California has proposed keeping perennial DST (i.e., all year round), and the EU debates between perennial Standard Time and perennial DST. Related to the discussion about DST is the discussion to which time zone a country, state or region should belong: the state of Massachusetts in the United States is considering switching to Atlantic Standard Time, i.e., moving the timing of its social clock (local time) 1 h further east (which is equivalent to perennial DST), and Spain is considering leaving the Central European Time to join Greenwich Mean Time (GMT), i.e., moving its social timing 1 h further west. A wave of DST discussions seems to periodically sweep across the world. Although DST has always been a political issue, we need to discuss the biology associated with these decisions because the circadian clock plays a crucial role in how the outcome of these discussions potentially impacts our health and performance. Here, we give the necessary background to understand how the circadian clock , the social clock , the sun clock , time zones, and DST interact. We address numerous fallacies that are propagated by lay people, politicians, and scientists, and we make suggestions of how problems associated with DST and time-zones can be solved based on circadian biology.

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Section: Myth-understandings and Confusions Surrounding Dstmentioning

confidence: 99%

Daylight Saving Time and Artificial Time Zones – A Battle Between Biological and Social Times

2019

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“…Epidemic of sleep deprivation among adolescents when schedules maintained during the school year are resulted in insufficient and ill-timed sleep was recognized in many post-industrial societies with different cultural traditions ( Spruyt et al, 2005 ; Chung and Cheung, 2008 ; Liu et al, 2008 ; Carskadon, 2011 ; Kim et al, 2011 ; Perkinson-Gloor et al, 2013 ; Short et al, 2013 ; Borisenkov et al, 2016 ; Carissimi et al, 2016 ; Komada et al, 2016 ; Gariépy et al, 2017 ). The explanations of this phenomenon relay on pubertal changes in the homeostatic and circadian regulation of sleep ( Andrade et al, 1993 ; Thorleifsdottir et al, 2002 ; Gau and Soong, 2003 ; Carskadon et al, 2004 ; Jenni and O’Connor, 2005 ; Millman, 2005 ; Hagenauer et al, 2009 ; Urner et al, 2009 ; Gradisar et al, 2011 ).…”

Section: Introductionmentioning

confidence: 99%

Simulation of the Ontogeny of Social Jet Lag: A Shift in Just One of the Parameters of a Model of Sleep-Wake Regulating Process Accounts for the Delay of Sleep Phase Across Adolescence

Putilov

Verevkin

2018

Front. Physiol.

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The term “social jet lag” was introduced for defining the conflict between social and biological clocks due to the general practice of shifting weekday risetime on early morning hours. The phase delay of the sleep-wake cycle during adolescence is one of the most remarkable features of the ontogenesis of sleep that is incompatible with early school start times. It was previously proposed that the process of accumulation of sleep pressure during wakefulness is slowing down in post-pubertal teens to allow them to stay awake for a longer period of time thus causing the delay of their bedtime. In order to examine this proposition, we traced the ontogeny of social jet lag using sleep times reported for 160 samples of study participants of different ages as an input to a model of sleep-wake regulatory process. The simulations suggested that a gradual change in just one of the model’s parameters, the time constant of wakefulness phase of the sleep-wake regulatory process, might explain the association of the transition between childhood and adulthood with the prolongation of time staying awake, delay of sleep time, and reduction of sleep duration. We concluded that the implication of the sleep-wake regulating model would be of help for understanding precisely how social jet lag varies with age and what are the chronophysiological causes of this variation.

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“…Repeatedly, SJL has been found to be a risk factor for higher body mass index (BMI) or even obesity, depressive symptoms, and for behaviour that is hazardous to health, such as smoking and poor dietary habits (for a review see [ 15 ]). The effects found by Borisenkov et al (2017) [ 14 ] correspond to a statistically small to medium effect size ( r = 0.2). Roenneberg, Winnebeck, et al [ 8 ] however recently claimed that this effect was “biologically large”.…”

Section: Misconceptions and Pitfallsmentioning

confidence: 92%

“…In the DST vs. ST debate, the only empirical study directly investigating the effects of perennial DST and ST found, for example, that DST was associated with an increase in "social jetlag" (SJL) [14], which is defined as the difference between the mid-sleep point on workdays and free days. Repeatedly, SJL has been found to be a risk factor for higher body mass index (BMI) or even obesity, depressive symptoms, and for behaviour that is hazardous to health, such as smoking and poor dietary habits (for a review see [15]).…”

Section: Statistical Effect Sizes Vs Practical Meaningfulness Of Effmentioning

confidence: 99%

Perspective: Daylight Saving Time—An Advocacy for a Balanced View and against Fanning Fear

Blume

Schabus

2020

Clocks & Sleep

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As experts, scientists must inform the public and political actors about relevant topics by providing a well-balanced analysis and overview of existing as well as missing scientific evidence. Particularly in cases where evidence is not solid, they must remain objective and not fan fear. Maintaining good scientific practice can be challenging, especially when a debate is emotionally charged and simple answers for complex issues are demanded. Recently, this was the case with the debate about (perennial) standard time vs. daylight saving time. In this publication, we address the common misconceptions and pitfalls for good scientific practice that accompany this discussion and deduce suggestions for future directions, which may help resolve them. Beyond this, we argue that it is not wise to simply “explain away” the public opinion or preference and we therefore recommend strategies that could support a discourse aiming at getting the public “on board”. Finally, we suggest that, in societies where the light environment is becoming increasingly complex, it may be time to reconsider the prevailing current relationships between solar and social clocks.

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Seven-year survey of sleep timing in Russian children and adolescents: chronic 1-h forward transition of social clock is associated with increased social jetlag and winter pattern of mood seasonality

Cited by 40 publications

References 16 publications

Daylight Saving Time and Artificial Time Zones – A Battle Between Biological and Social Times

Daylight Saving Time and Artificial Time Zones – A Battle Between Biological and Social Times

Simulation of the Ontogeny of Social Jet Lag: A Shift in Just One of the Parameters of a Model of Sleep-Wake Regulating Process Accounts for the Delay of Sleep Phase Across Adolescence

Perspective: Daylight Saving Time—An Advocacy for a Balanced View and against Fanning Fear

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