By Dr. Joti Samra, CEO & Founder of the Psychological Health & Safety (PH&S) Clinic and MyWorkplaceHealth. Originally published for LifeSpeak in 2010. About 30% of employed Canadians, approximately 3 million, work shift—non-standard work hours that cover a wide variety of work schedules. Shift work can consist of fixed shifts or shifts that rotate or change according to a set schedule. The length of shifts can vary between 8 to 12 hours. Shift work is critical to our economy due to our society’s need for around-the-clock provision of medical, transportation, and protection services. Shift work is also common in industrial work, mines, and in workplaces where technical processes cannot be interrupted without affecting the product and/or where expensive equipment is used more profitably when in constant operation.
Although shift work is a job requirement for many employees, there are a number of workers who choose shift work because it allows for more free time or enables their families to manage child care needs. Interest in the effects of shift work on people has grown because many experts have pointed to rotating or extended shifts for the “human error” connected with nuclear power plant incidents, air crashes, and other catastrophic incidents. While shift work is essential to the economy and may be a necessary choice for some, researchers have found compelling evidence that working shift takes a physical and psychological toll on workers. Many workers find that shift work disrupts their family and personal life, limiting their ability to participate in leisure and family activities and making it difficult to find or maintain long-term relationships with a spouse. This fact is important because of the correlation between amounts and quality of social interaction and physical and mental health. People who do shift work report fatigue as the most common health complaint. Dr. Joti Samra, Clinical Psychologist and Researcher and member of LifeSpeak’s Vancouver roster of expert speakers, points out that 1/3 of shift workers experience a severe clinical disturbance in their sleep in the form of shift work sleep disorder. Dr. Samra explains that this is a clinically recognized condition where a constant or recurrent pattern of sleep disruption results in insomnia or fatigue. Shift work has also been associated with cardiovascular disease, hypertension and gastrointestinal disorders, and for women, reproductive health problems and breast cancer. Researchers have identified three interrelated factors that contribute to the association of shift work and health issues:
Since it is not a practical possibility to eliminate shift work, employers can implement some strategies to reduce the effects of shift work on employees. The Canadian Centre for Occupational Health and Safety recommends two levels where improvements can be made:
The Canadian Centre for Occupational Health and Safety recommends several organizational strategies for reducing the effects of shift work.
By supporting employees through strategies that mitigate some of the very serious physical and mental health concerns brought on by shift work, organizations can lay the foundation for workers to address, on the individual level, the difficulties they face from the changes in eating, sleeping, and working patterns. Resources:
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