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Working night shift is associated with sleep disorders

night shift

Sleeping man in halloween with many creepy hands behind.

Working for unusual hours or night shifts can cause harm to one’s health and can increase the likelihood of developing sleep disorders, a new study revealed.

“There is a lot of evidence that shift work reduces the quality of sleep. However, little is known about the influence of different types of shifts on the prevalence of various sleep disorders and how this may vary depending on demographic characteristics,” explains Dr. Marike Lancel, researcher at the GGZ Drenthe’s Mental Health Institute in the Netherlands, in a statement.

This inspired a team of Dutch researchers to assess the association between different shift patterns, which result in employees working at night, certain sociodemographic factors, and sleep disorders. To do this, they studied data from 37,662 workers, classified according to their work schedules (standard day, early morning, evening, night and shift work). In addition to the demographic information provided to the researchers, participants were asked to answer a questionnaire focusing on sleep disorders.

READ: How does sleep deprivation impact your life? 

The research, published in the journal Frontiers in Psychiatry, suggests that regular night work is the most debilitating condition regarding sleep: One out of every two participants in this category indicated that they had slept less than 6 hours within 24 hours, while 51% reported one sleep disorder and 26% at least two sleep disorders. Almost a third of all participants were affected by at least one sleep disorder and almost 13% by at least two such disorders.

Looking at demographic factors, men seem to be more affected by sleep deprivation than women, but the latter suffer more from sleep disorders. Disparities are also observed according to age group: older workers sleep less, but it’s young people aged 30 and under who suffer most from sleep disorders.

“We showed that compared to working regular shifts during daytime hours, working other shift types is associated with a higher occurrence of disordered sleep, particularly in rotating and regular night shift work,” noted Dr. Marike Lancel. She concluded, “because those working night shift will remain de-synchronized with the day-work focused environment they live in, it is unlikely to completely prevent all negative consequences of night work.”

READ: Why being a night owl may lead to an earlier death

This isn’t the first time these late-night working hours have been singled out for their impact on health. In 2018, France’s Anses agency “Agence nationale de sécurité sanitaire de l’alimentation, de l’environnement et du travail” reported: “Changes in work organization are now leading an increasing number of French people to work night shifts,” citing in particular “the proven effects of these schedules on the occurrence of sleep disorders, as well as the probable effects on the onset of cancers and certain cardiovascular pathologies, and also repercussions on the worker’s psychological health.” The French agency followed this with a report that encouraged better supervision of this type of work or reducing it to a minimum.

TAGS: health, mental health, sleep
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