Higher-Activity Jobs Tied to Sleep Extremes

June 3, 2013
Science Daily/Perelman School of Medicine at the University of Pennsylvania
A study from the Perelman School of Medicine at the University of Pennsylvania has found that people who work in jobs that are more physically demanding tend to be either shorter sleepers (fewer than 6 hours a night) or longer sleepers (longer than 9 hours).

Since previous research has shown that people who report short or long sleep are more likely to have worse health over time, such as weight gain, heart disease and diabetes, the new study suggests that people's jobs may predispose them to unhealthy sleep patterns that could detrimentally affect their health. The findings go against the concept that physical activity in general seems to be healthy, and physical activity tends to be good for sleep.

Penn researchers examined sleep patterns and job classifications of over 17,000 study participants. Job activity was classified as low (mostly sitting or standing), moderate (mostly walking), or high (mostly manual labor). Compared to those in low activity jobs, those working moderate activity jobs, such as postal service employees, were more likely to be short sleepers and long sleepers, and those working high-activity jobs, such as construction workers, were more likely to be short sleepers.

According to the research team, possible explanations for the findings include:

1) the higher demands of the job require longer hours, not allowing for a full night of sleep;

2) job-related stress is keeping people up at night; and

3) the physical demands of the job are causing persons to stay awake.
Science Daily/SOURCE :http://www.sciencedaily.com/releases/2013/06/130603163622.htm

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