Consequences of Circadian Disruption in Shift Workers on Chrononutrition and their Psychosocial Well-Being

The workers and employees in various institutions are subjected to different shifts and work schedules. The employees work not only at daytime but also during odd hours at night. The biological clock of an individual is often altered during night shifts. This affects the psychosocial well-being and circadian nutritional intake of the worker. Disturbance in circadian rhythm results in the development of metabolic disorders such as hypertension, dyslipidemia, dysglycemia, and abdominal obesity. In the present review, we discuss the nature of shift work, sleep/wake cycle of an individual, chrononutrition, dietary habits, and meal changes with regard to timing and frequency, related to shift work. We also discuss the relationship between nutritional intake and psychosocial well-being among shift workers. The review may be beneficial for prevention of metabolic disorders and maintaining sound psychological condition in shift workers.

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The Relationship Between Workers’ Health and Night Shift Work in Food Franchise Industry in Kuching, Sarawak, Malaysia

Journal of Cognitive Sciences and Human Development ◽

10.33736/jcshd.1118.2018 ◽

2018 ◽

Vol 4 (2) ◽

pp. 18-27

Author(s):

Siew Wui Long ◽

Florianna Lendai Michael ◽

Hana Hamidi

Keyword(s):

Mental Health ◽

Circadian Rhythm ◽

Shift Work ◽

Night Shift ◽

Well Being ◽

Sleep Pattern ◽

Shift Workers ◽

Night Shift Work ◽

The Relationship ◽

Pearson Correlations

Shift work alters workers exposure to natural and artificial light, sleep patterns, and feeding patterns. Among other working population, shift workers are at a greater risk of developing metabolic impairments over time. Hence, this study aimed to study the relationship between workers’ health and night shift work in food franchise industry in Kuching, Sarawak. The independent variables are sleep pattern, mental health, psychological well-being, circadian rhythm, and insomnia, while the dependent variable is night shift work. Questionnaires were distributed using convenience sampling techniques and a total of 59 questionnaires were collected. Pearson Correlations test. showed that there is a significant relationship between workers’ health and night shift work. The implications on this research shows that there are more researches on the mitigation of health risk on shift workers. Keywords: Night shift work; sleep pattern; mental health; psychological; circadian rhythm; insomnia

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Interindividual Differences in Adjustment to Shift Work

Proceedings of the Human Factors Society Annual Meeting ◽

10.1177/154193127602002202 ◽

1976 ◽

Vol 20 (22) ◽

pp. 510-514 ◽

Cited By ~ 1

Author(s):

Torbjörn Akerstedt

Keyword(s):

Shift Work ◽

Night Shift ◽

Age Groups ◽

Well Being ◽

Shift Workers ◽

Younger Age ◽

Mental Demands ◽

Sleep Length ◽

Housing Standards ◽

Night Shifts

320 3-shift workers, 30 2-shift workers and 30 day workers filled out a questionnaire on work hours and well-being. For 3-shift workers highest ratings of well-being were reported for the afternoon shift, followed by morning, and night shifts. Two-shift workers gave ratings identical to those of the 3-shift workers on corresponding shifts. Multivariate analysis showed that neuroticism, mental demands on the job and, to some extent, also housing standards accounted for variance in well-being on the night shift. When sleep length was used as the dependent variable the most important predictors were age and experience of shift work. Finally, it was found that, above the age of 45, well-being on the night shift decreased with increased experience of shift work. In younger age groups no relations of this kind were found. (Age was held constant in all analyses.) It was suggested that the relations found may indicate the existence of a process of accumulation of costs of adjustment starting around the age of 45.

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Night Shift Work Increases the Risk of Asthma

10.1101/2020.04.22.20074369 ◽

2020 ◽

Author(s):

RJ Maidstone ◽

J Turner ◽

C Vetter ◽

HS Dashti ◽

R Saxena ◽

...

Keyword(s):

Shift Work ◽

Metabolic Disorders ◽

Night Shift ◽

Internal Clock ◽

Uk Biobank ◽

Shift Workers ◽

The Public ◽

High Prevalence ◽

The Relationship ◽

Prevalent Asthma

AbstractShift work causes misalignment between our internal clock and daily behavioural cycles and is associated with metabolic disorders and cancer. Here, we describe the relationship between shift work and prevalent asthma in >280,000 UK Biobank participants. Compared to day workers, ‘permanent’ night shift workers had a higher likelihood of moderate/severe asthma (odds ratio (OR) 1.36 (1.03-1.8)) and all asthma (OR 1.23 (1.03-1.46) after adjustment for known major confounders). The public health implications of this finding are far-reaching due to the high prevalence and co-occurrence of both asthma and shift work.

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ANALYSIS OF THE EFFICIENCY IN THE STRUCTURE OF FUNCTIONAL CONDITIONS IN COMMUNICATION WITH SOCIAL-PSYCHOLOGICAL QUALITIES OF WATCH EMPLOYEES OF THE MINING AND PROCESSING PLANT

Hygiene and Sanitation ◽

10.18821/0016-9900-2018-97-2-149-155 ◽

2018 ◽

Vol 97 (2) ◽

pp. 149-155 ◽

Cited By ~ 1

Author(s):

Irina A. Porokhina ◽

T. S. Voytekhovich ◽

N. N. Simonova

Keyword(s):

Shift Work ◽

Right Hemisphere ◽

Well Being ◽

Professional Activity ◽

Processing Plant ◽

Social Psychological ◽

Shift Workers ◽

Professional Activities ◽

Functional States ◽

The Right

The authors prove the relevance of the study of the effectiveness of professional activities of employees in relation to personal characteristics and functional states in extreme conditions, especially in conditions of the shift work in the Far North. The purpose of the study was to analyze the interrelationship between the efficiency of professional activities of shift workers in a mining and processing factory with their social and psychological qualities and functional states during the shift-work period. Study group: 41 shift workers of the mining and processing factory of one of the diamondiferous deposits of the Arkhangelsk region. Methods of research included the psychological testing, set of psychophysiological techniques. The research show the social-psychological characteristics of the personality such as an evaluation of others as an etalon of oneself, moderate severity of altruistic type of attitude towards people, desire to achieve results in their activities at an average level, ability to control one’s feelings and emotions to be important for the effectiveness of the professional activity of shift specialists. The states of high effective workers are estimated at the level of the norm according to the indices of well-being and mood, the activity is estimated below the norm. The states of high-performance workers are also characterized by heteronomy and a strong degree of predominance of the right hemisphere. Average effective workers have a setting for the result at a level above the average, developed the ability to control one’s feelings, responsibility towards people. The states arising in the course of the labor activity, average-effective workers are estimated to be on average higher than the group of highly efficient workers. They are more autonomous and have a small degree of predominance of the right hemisphere. Employees, judged by experts as average-effective, resort to the use of the adaptation strategy for the emergency job, highly effective workers use economical strategy.

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Disturbances of Autonomic Regulation of Cardiovascular System at Different Working Regimes with Night Shifts

Kardiologiia ◽

10.18087/cardio.2020.9.n1134 ◽

2020 ◽

Vol 60 (9) ◽

pp. 62-67

Author(s):

Yu. A. Merkulov ◽

A. A. Pyatkov ◽

S. G. Gorokhova ◽

D. M. Merkulova ◽

O. Yu. Atkov

Keyword(s):

Shift Work ◽

Spectral Characteristics ◽

Night Shift ◽

Autonomic Regulation ◽

Total Power ◽

Orthostatic Test ◽

Heart Rhythm Variability ◽

Shift Workers ◽

Rotating Shift Work ◽

Night Shifts

Aim To study temporal and spectral characteristics of heart rhythm variability (HRV) in night shift workers.Materials and methods Along with traditional risk factors, conditions of labor contribute to development of cardiovascular morbidity, including night shift work, which can be associated with disorders of the autonomic regulation detected by analysis of HRV. This study included 100 healthy men. 74 of them were engaged in shift work, including 53 men with rotating shift work, 21 men with fixed night shifts, and 26 men with day-time work. HRV was analyzed by data of 5-min electrocardiogram recording (background recording and orthostatic test).Results Night-shift workers had decreases in total power of regulation (ТР, SDNN) and in the parasympathetic branch (HF, pNN50). Rotating night-shift workers displayed significant decreases in SDNN and pNN50 and pronounced changes in the VLF / LF / HF ratio in the orthostatic test.Conclusion In work with night shifts, the type of autonomic regulation differs from the “standard” functioning of the autonomic nervous system (ANS). This study showed different effects of night work regimens on HRV indexes. With the rotating shift work, the ANS dysregulation was more profound and was evident by a significant decrease in the ANS total tone and parasympathetic activity (SDNN, pNN50) compared to night shifts with fixed working hours. The excessive weakening of the parasympathetic component in the passive orthostatic test can be considered as an early marker for ANS maladaptation.

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The Effect of Shift Work and Poor Sleep on Self-Reported Skin Conditions: A Survey of Call Center Agents in the Philippines

Clocks & Sleep ◽

10.3390/clockssleep1020023 ◽

2019 ◽

Vol 1 (2) ◽

pp. 273-279 ◽

Cited By ~ 1

Author(s):

Francine Lu ◽

Amanda Suggs ◽

Harib Ezaldein ◽

Jason Ya ◽

Pingfu Fu ◽

...

Keyword(s):

Circadian Rhythm ◽

Shift Work ◽

Skin Disease ◽

Call Center ◽

Night Shift ◽

The Philippines ◽

Poor Sleep ◽

Shift Workers ◽

Significant Difference ◽

Skin Conditions

Night shift workers may have a disrupted circadian rhythm, which may contribute to the development of skin disease. The purpose of this study was to determine whether there is a significant difference in the prevalence and severity of self-reported skin disease between “regular” day shift workers compared to “graveyard” night shift workers. We conducted surveys from 630 call center agents in Manila, the Philippines, and they were analyzed regarding demographics, medical history, dermatologic history, lifestyle, and sleep. No difference was found in the prevalence of skin disease between shifts. However, night shift workers were worse sleepers. When compared to good sleepers, poor sleepers had a higher prevalence of skin disease with worse severity. Graveyard shift workers with poor sleep may have increased skin disease severity.

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Circadian misalignment increases mood vulnerability in simulated shift work

Scientific Reports ◽

10.1038/s41598-020-75245-9 ◽

2020 ◽

Vol 10 (1) ◽

Cited By ~ 1

Author(s):

Sarah L. Chellappa ◽

Christopher J. Morris ◽

Frank A. J. L. Scheer

Keyword(s):

Shift Work ◽

Night Shift ◽

Well Being ◽

Continuous Exposure ◽

Shift Workers ◽

Circadian Misalignment ◽

Alignment Condition ◽

Increased Risk ◽

Mood Effects ◽

Alignment Interaction

Abstract Night shift work can associate with an increased risk for depression. As night workers experience a ‘misalignment’ between their circadian system and daily sleep–wake behaviors, with negative health consequences, we investigated whether exposure to circadian misalignment underpins mood vulnerability in simulated shift work. We performed randomized within-subject crossover laboratory studies in non-shift workers and shift workers. Simulated night shifts were used to induce a misalignment between the endogenous circadian pacemaker and sleep/wake cycles (circadian misalignment), while environmental conditions and food intake were controlled. Circadian misalignment adversely impacted emotional state, such that mood and well-being levels were significantly decreased throughout 4 days of continuous exposure to circadian misalignment in non-shift workers, as compared to when they were under circadian alignment (interaction of “circadian alignment condition” vs. “day”, mood: p < 0.001; well-being: p < 0.001; adjusted p-values). Similarly, in shift workers, mood and well-being levels were significantly reduced throughout days of misalignment, as compared to circadian alignment (interaction of “circadian alignment condition” vs. “day”, mood: p = 0.002; well-being: p = 0.002; adjusted p-values). Our findings indicate that circadian misalignment is an important biological component for mood vulnerability, and that individuals who engage in shift work are susceptible to its deleterious mood effects.

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Diurnal and Seasonal Variations in Industrial Fatigue of Shift Workers

Proceedings of the Human Factors Society Annual Meeting ◽

10.1177/154193127602002203 ◽

1976 ◽

Vol 20 (22) ◽

pp. 515-518

Author(s):

Andrzej Ogiński ◽

Lucyna Koźlakowska-Swigoń ◽

Janusz Pokorski

Keyword(s):

Heart Rate ◽

Shift Work ◽

Pulse Rate ◽

Seasonal Variations ◽

Shift Workers ◽

Seasonal Factor ◽

Analysis Of Results ◽

Fatigue Estimation ◽

Continuous Work ◽

Night Shifts

The interview was carried out with 1664 steelworkers in the aim of obtaining their opinion on subjective fatigue accompanying the work on morning, afternoon and night shifts. Warm and cold seasons of the year were treated separately. Continuous work observations and telemetric heart rate registration were conducted at some workplaces. Analysis of results exhibited a great differentiation of fatigue estimation on particular shifts. Influence of the seasonal factor was found to be very important both in the reported feeling of fatigue as in changes of the pulse rate. Conclusions concern the ergonomic approach to fatigue problems in shift work.

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Designing Light for Night Shift Workers: Application of Nonvisual Lighting Design Principles in an Industrial Production Line

Applied Sciences ◽

10.3390/app112210896 ◽

2021 ◽

Vol 11 (22) ◽

pp. 10896

Author(s):

Johannes Zauner ◽

Herbert Plischke

Keyword(s):

Shift Work ◽

Industrial Production ◽

Night Shift ◽

Stimulus Range ◽

Automation System ◽

Shift Workers ◽

Health And Wellbeing ◽

Rotating Shift Work ◽

Lighting Simulation ◽

Night Shifts

Chronodisruption deteriorates the health and wellbeing of shift workers. Artificial light at night and the lack of light during the day are major contributors to chronodisruption and need to be optimized in shift work scenarios. Here, we present one solution for a lighting and automation system in an industrial production workplace. The setting is a rapidly rotating shift work environment with morning, evening, and night shifts. We describe a procedure to specify the new lighting through a software-agnostic nonvisual lighting simulation for artificial and daylighting scenarios. Through this process, a new luminaire is created, called Drosa, that allows for a large melanopic stimulus range between 412 and 73 lx melanopic equivalent daylight (D65) illuminance vertically at eye level, while maintaining a neutral white illuminance at task level between 1250 and 900 lx, respectively. This is possible through a combination of glare-free spotlights with adjustable areal wing lights. An individually programmed automation system controls the light dosage and timing during the day and night. The work is relevant for other shift work scenarios, where the presented example and the discussed rationale behind the automation might provide insights. The work is further relevant for other lighting scenarios beyond industrial shift work, as the nonvisual lighting simulation process can be adapted to any context.

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Relationship between Night shift work, Eating Habits and BMI among Nurses in Lebanon

10.21203/rs.2.16152/v3 ◽

2020 ◽

Author(s):

Zeinab Samhat ◽

Randa Attieh ◽

Yonna Sacre

Keyword(s):

Shift Work ◽

Dietary Habits ◽

Eating Habits ◽

Night Shift ◽

Cumulative Number ◽

Anthropometric Measures ◽

Cross Sectional ◽

Night Shift Work ◽

Validated Questionnaire ◽

Night Shifts

Abstract Background: The objective of this cross-sectional study was to evaluate the relationships between night shift work, eating habits and body mass index (BMI) among Lebanese nurses. Methods: A total of 307 nurses were randomly selected from five hospitals located in Beirut. Data about demographic and professional characteristics, anthropometric measures, dietary habits and intakes were collected through a validated questionnaire. To study the relationship between night shift work, eating habits and BMI, chi-square test, t-test and logistic regressions were used.Results: The majority of nurses (78. 2%) had irregular meals timing with a significant decrease in the number of complete meals consumed during the day and an increase in the number of snacks consumed during night (p<0. 05). The most consumed snacks during night shifts were sweets and potato chips. The findings highlighted that BMI and waist circumference significantly increased with the number of years of work (r=0.175; p<0.05) and the cumulative number of night shifts hours over the entire work history (r=0.135/p< 0. 05). Conclusion: Night shift work is positively associated with abnormal eating patterns and BMI among Lebanese nurses. However the increase in BMI is not related to eating habits.

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