Evening chronotype, late weekend sleep times and social jetlag as possible causes of sleep curtailment after maintaining perennial DST: ain’t they as black as they are painted?

Putilov, Arcady A.; Полуэктов, М Г; Дорохов, В. Б.

doi:10.1080/07420528.2019.1684937

Cited by 18 publications

(12 citation statements)

References 38 publications

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“…Such a prediction fully disagrees with the widely held belief in human ability to make up missed weekday sleep by increasing sleep duration on weekend nights. Previous simulations [2,4,5] and the present model-based simulations (Fig. 1) did not support the concept of catching up on missed weekday sleep during the following weekend.…”

Section: Discussioncontrasting

confidence: 97%

“…The following response of sleep to "lockdown" can be expected from the results of previous simulations of sleep times [2,4,5]. Due to a failure to accumulate "sleep debt" during weekdays, a shift from an earlier risetimes before "lockdown" to a later weekday risetimes during "lockdown" must lead to an increase of weekday sleep duration during "lockdown".…”

Section: Introductionmentioning

confidence: 86%

“…This implies that “sleep debt” cannot be accumulated during weekdays, and if it cannot be accumulated during weekdays, there is nothing to be “paid” back during weekend nights. Therefore, the widely held belief in human ability to catch up on sleep over such weekend nights has not been validated by the model-based simulations [ 2 , 4 , 5 ].

Fig.…”

Section: Introductionmentioning

confidence: 99%

“…1A and C). This implies that [2,4,5]. By April 2020, due to the COVID-19 pandemic about half of the world's population was under some form of "lockdown" [6].…”

Section: Introductionmentioning

confidence: 99%

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Sleep during “lockdown” highlighted the need to rethink the concept of weekend catch-up sleep

Putilov

2021

Sleep Breath

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Section: Discussioncontrasting

confidence: 97%

Section: Introductionmentioning

confidence: 86%

Fig.…”

Section: Introductionmentioning

confidence: 99%

“…1A and C). This implies that [2,4,5]. By April 2020, due to the COVID-19 pandemic about half of the world's population was under some form of "lockdown" [6].…”

Section: Introductionmentioning

confidence: 99%

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Sleep during “lockdown” highlighted the need to rethink the concept of weekend catch-up sleep

Putilov

2021

Sleep Breath

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“…Our body clocks systematically adjust to changes in photoperiod, but by suddenly changing the social clocks by one hour we abruptly change the phase angle between the time of arising and dawn [ 18 ]. Even without a change in time of arising caused by DST, many individuals experience circadian misalignment coupled with sleep loss [ 15 , 19 , 20 ], which has been associated with an increase in the risk of cardiovascular diseases [ 21 , 22 ]. Superimposed abrupt circadian misalignment caused by the spring DST transition might therefore pose additional cardiovascular burden on individuals with high levels of social jetlag, in primarily late chronotypes.…”

Section: Circadian Clock Chronotypes and Dstmentioning

confidence: 99%

Acute Myocardial Infarction and Daylight Saving Time Transitions: Is There a Risk?

Čulić

Kantermann

2021

Clocks & Sleep

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Available evidence on the risk of acute myocardial infarction (AMI) in the days after the spring daylight saving time (DST) transition suggests either a modest increase or no risk increase. Partial sleep deprivation and enhanced circadian clock misalignment have been implicated as the underlying mechanisms for increased AMI risk, probably via enhanced thrombo-inflammatory processes and activation of the sympathetic nervous system. Most of the studies, as we suggest as a perspective here, have used potentially inappropriate control periods, including the two post-transitional weeks, because adjustment after the spring DST transition lasts at least four weeks for all chronotypes and probably even beyond this period for late chronotypes. The most plausible conclusions, at the moment, for the risk of AMI after the spring DST transition are: (1) the risk is increased, (2) a relatively modest risk increase could be currently underestimated or in some studies undetected, (3) late chronotypes and/or individuals with high levels of social jetlag (a proxy for circadian clock misalignment) could be more affected by the phenomenon, and (4) underlying pathophysiological mechanisms should be further explored. As a significant part of world’s population continues to be affected by the biannual clock change, the question of increased AMI risk in the post-transitional period remains an intriguing public health issue.

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Quo Vadis, Chronopsychology?

Putilov

2021

Neurosci Behav Physi

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This is the fi rst review in chronopsychology, a relatively new interdisciplinary area of research which has developed rapidly at the junction of chronobiology, somnology, and psychology. Chronopsychology studies the mechanisms of rhythmicity in behavior and the mind based on methods of chronobiology, somnology, and psychometry. In particular, chronobiology studies biological clocks, while somnology addresses their infl uences on regulatory processes directly controlling the sleep-waking cycle, impairments to which have adverse impact on mental activity. Psychometric and differential psychology methods are widely used, for example, in studies of the chronotype and its relationship with a great diversity of human characteristics -genetic, psychophysiological, behavioral, cognitive, personality, and psychopathological. Particular attention is paid to sleep, drowsiness, fatigue, work/study productivity, and healthy/unhealthy lifestyles in people of different sexes and ages. Applied research includes the development -taking account of the chronotype of each specifi c person -of recommendations supporting preservation of good quality sleep and health in specifi c temporal situations, optimizing work/rest patterns, effi cient assimilation of new skills, and preventing accidents during vigorous activity at times of day unsuitable for these activities.

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Evening chronotype, late weekend sleep times and social jetlag as possible causes of sleep curtailment after maintaining perennial DST: ain’t they as black as they are painted?

Cited by 18 publications

References 38 publications

Sleep during “lockdown” highlighted the need to rethink the concept of weekend catch-up sleep

Sleep during “lockdown” highlighted the need to rethink the concept of weekend catch-up sleep

Acute Myocardial Infarction and Daylight Saving Time Transitions: Is There a Risk?

Quo Vadis, Chronopsychology?

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