What do firefighters, police officers, doctors, nurses, paramedics, factory workers, and office cleaning staff have in common? They all are at risk for shift work sleep disorder. If you work at night or often rotate shifts, you may share that risk. Working at night or irregular shifts can keep you from getting the regular snooze time that most daytime workers take for granted.
Working non-traditional hours is more common than you might think. In industrialized nations, up to 20% of workers work either night or rotating shifts, according to an editorial published in the New England Journal of Medicine.
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Although not everyone who works odd hours has shift work sleep disorder, a lot can be at stake. People with shift work disorder have higher rates of absenteeism and accidents related to sleepiness than night workers without the disorder.
Memory and ability to focus can become impaired, and shift workers who are sleep-deprived often get irritable or depressed, says Wesley Elon Fleming, MD, clinical assistant professor at Loma Linda University and director of the Sleep Center Orange County in Southern California. Their relationships and social life can suffer, too.
Shift workers also face potential health problems, researchers have found. Overall, those who work night or rotating shifts seem to have a higher risk of ulcers, insulin resistance, metabolic syndrome, and heart disease.
Working Shifts: 9 Tips for Better Sleep
If your job requires that you work the night shift or hours other than the traditional 9 to 5, you need to pay close attention to your sleep. These tips can help you get good sleep:
Try not to work a number of night shifts in a row. You may become increasingly more sleep-deprived over several nights on the job. You're more likely to recover if you can limit night shifts and schedule days off in between.
Avoid frequently rotating shifts. If you can't, it's easier to adjust to a schedule that rotates from day shift to evening to night rather than the reverse order.
Try to avoid long commutes that take time away from sleeping.
Keep your workplace brightly lighted to promote alertness. If you're working the night shift, expose yourself to bright light, such as that from special light boxes, lamps, and visors designed for people with circadian-related sleep problems, when you wake up. Circadian rhythms are the body's internal clock that tells us when to be awake and when to sleep. These rhythms are controlled by a part of the brain that is influenced by light. Fleming says that being exposed to bright light when you start your "day" can help train your body's internal clock to adjust.
Limit caffeine. Drinking a cup of coffee at the beginning of your shift will help promote alertness. But don't consume caffeine later in the shift or you may have trouble falling asleep when you get home.
Avoid bright light on the way home from work, which will make it easier for you to fall asleep once you hit the pillow. Wear dark, wraparound sunglasses and a hat to shield yourself from sunlight. Don't stop to run errands, tempting as that may be.
Stick to a regular sleep-wake schedule as much as you can.
Ask your family to limit phone calls and visitors during your sleep hours.
Use blackout blinds or heavy curtains to block sunlight when you sleep during the day. "Sunlight is a potent stimulator of the circadian rhythm," Fleming says. "Even if your eyes are closed, the sunlight coming into the room tells your brain that it's daytime. Yet your body is exhausted and you're trying to sleep. That discrepancy ... is not a healthy thing for the body to be exposed to."