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Related Experiment Video

Updated: May 26, 2026

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments

Published on: August 8, 2019

Shiftwork and changes in health behaviors.

Kirsten Nabe-Nielsen¹, Helle Gram Quist, Anne Helene Garde

¹Department of Public Health, Section of Social Medicine, University of Copenhagen, Øster Farimagsgade 5, 1014 Copenhagen, Denmark. nabe@sund.ku.dk

Journal of Occupational and Environmental Medicine

|December 14, 2011

Summary

This summary is machine-generated.

Shiftwork, particularly fixed night shifts, is linked to negative changes in health behaviors like smoking and physical activity. Some shift patterns may help prevent weight gain, suggesting behavior changes mediate health outcomes.

Related Experiment Videos

Last Updated: May 26, 2026

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments

Published on: August 8, 2019

Area of Science:

Occupational Health
Behavioral Science
Epidemiology

Background:

Shiftwork is prevalent in healthcare and associated with adverse health outcomes.
Understanding the impact of shiftwork on health behaviors is crucial for preventative strategies.

Purpose of the Study:

To investigate the association between different shiftwork schedules and changes in health behaviors among female healthcare workers.
To explore potential mediating roles of health behaviors in the link between shiftwork and health.

Main Methods:

A cohort of 2062 graduating healthcare helpers/assistants provided questionnaire data.
Shiftwork exposure in 2005 was analyzed against changes in smoking, physical activity, and weight from 2004 to 2006.

Main Results:

Fixed nightwork correlated with increased smoking relapse, decreased smoking cessation, and reduced likelihood of becoming physically active.
Working two or three shifts including night shifts was associated with lower odds of weight gain.
Fixed evening work and two shifts without nightwork showed no significant association with health behavior changes.

Conclusions:

Fixed nightwork appears detrimental to maintaining healthy behaviors, potentially increasing risks for adverse health outcomes.
Health behavior modifications may partially explain the observed associations between specific shiftwork patterns and health.