Does your job pose hazards to your sleep?

Dr Michael J. Breus, | 01-March-2014

Detailed News

Long work hours as well as shift job are sure to affect one’s health, particularly sleep, as is evident from various researches in the area. So it’s time to have a closer look at sleep routine and work hours in your life               

Dr Michael J. Breus,
Clinical Psychologist,
the American Board of Sleep Medicine

For many of us, our work gives shape to our daily lives. Most of us must work to support ourselves, our households, and our families. Its not uncommon to spend more waking time on the job or otherwise engaged with work than any other aspect of our lives. Given the scope of the role that work plays in our lives, we dont pay nearly enough attention to the impact of our jobs on our healthand in particular, our sleep.

Its true that some jobs and industries pose greater challenges to sleep. Rotating schedules, overnight or early morning hours, extensive travel, high-stress and high-pressure responsibilitiesthese and other on-the-job realities can undermine healthy sleep routines, and bring about chronic health problems, especially as we age.

Air traffic controllers and pilots, medical residents and truck driversthese are some of the jobs that garner at least some attention (if not enough) for the hazards they pose to sleep. But what about the financial analyst who is up before dawn communicating with a colleague on the other side of the world? Or the restaurant worker whose work isnt finished until well beyond the 1 am last call? These and many other jobs come with sleep risks that fly under the radar, often going unnoticed and unaddressed.

Depending on its schedules and demands, different jobs will pose different challenges to regular, restful, sufficient sleep. Here are a few of the most common work-related sleep problems:  

Shift work: Shift work can pose serious problems for sleep. Working changing or rotating schedules makes it difficult to establish a consistent sleep routine. Getting up and going to bed at different times of the day isnt just inconvenient but this lack of routine can cause disruption to the bodys circadian rhythm, the 24-hour biological clock that regulates sleep-wake cycles. Shift workers are at higher risk of sleep disorders, including insomnia and obstructive sleep apnea. Research shows that shift workers are at greater risk of  accidents and injury, as well as chronic diseases associated with poor sleep, including heart disease and stroke.

Who works shifts? In todays world, more and more people work something other than the traditional, routine Monday-to-Friday daytime schedule. Doctors, nurses and other medical professionals, as well as airline and airport personnel, and manufacturing workers are some of the professions that traditionally involve shift work. But in our globally connected, 24/7 society, people in fields like technical support, customer service are often working irregular and evening shifts. People who have to travel frequently for work can also experience similar sleep problems to shift workers. Many of our public health and safety professionals work shifts, including police and firefighters. This means sleep problems associated with shift work is a public health issue.

Long hours: Sometimes, its not a changing schedule that interferes with sleep, but the duration of work that poses hazards to sleep and health. Studies show that working long hours is associated with several sleep problems, including shortened sleep times, difficulty falling asleep and daytime impairment. A recent study of nurses found that those working overtime and long hours were more likely to report poor sleep than those with less grueling schedules. These same nurses were also more likely to be overweight or obese and to exercise less, and were more likely to engage in unhealthy behaviours like smoking. A great many jobs fall into the long hours category, including many supervisory and management positions. The connection between long hours and sleep problems may not be as recognized as that of shift work, but the impact is very real, and deserves more study and attention.

High stress: Stress and worry are enemies to sleep. And a high-stress, high-pressure job can make it difficult to leave work concerns at the office. Research shows that worry has its greatest effect on sleep during the ages 35-55- right smack in the middle of most career trajectories. (of course, its also the time when people are also often raising families.) Jobs that from the outside may seem downright cushy, high-paying, high-prestige positions in industries such as business and finance, science and engineering, and information technology often come with non-stop pressure and responsibility that can undermine health and sleep. Positions like these demand long work hours. Many of these demanding, high-pressure jobs are ones that people never really leave, where the separation between work life and non-work life is tenuous at best. Research begins to explore the toll that high-intensity work has on health and sleep. Recent studies have shown significantly elevated rates of insomnia among software engineers, compared to the general population, and Wall Street investment bankers contending with insomnia and depression.   

Often were so busy managing our daily lives that we stop paying attention to whats right in front of us. If youre having trouble building and maintaining a healthy sleep routine, taking a closer look at how your job affects your sleep may help lead you to more effective strategies for getting the rest you need.


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