Shift Workers: Solutions for Sleep Problems

You stand at the bathroom sink, yawn, and splash cold water onyour face. You glance at the clock—it is 10 pm. Instead of puttingon pajamas and crawling beneath the covers, you are dressing forwork. You fill a thermos full of coffee and stumble out the door.On the drive to work, you rub your eyes and roll down the window abit to keep from falling asleep at the wheel. You have troubleconcentrating on your work and you struggle to stay awakethrough the night. Finally, it is quitting time and you can gohome to bed. Just when you are about to drift off, a neighbor cranksup a lawn mower, the birds seem to chirp louder than usual, and youcannot ignore the sunlight seeping in around the corners of thedrawn shades. The lifestyle of a shift worker can be tough. The lackof sleep can lead to many problems, including depression, lower job productivity, health problems, andmarital and family discord. It can also lead to accidents, both onthe job and on the highway. The National Sleep Foundation (NSF) notes that shift workers are more likely to drive to or from work drowsy at least a few days a month than those who work a regular daytime schedule. For millions of American shift workers the frustration of struggling to stayawake while they perform their jobs and then battling with insomnia and other sleep-related problems once they return home is too real. But if shift work creates so many problems, why not just stick witha daytime routine? Well, many people who make their living at odd hoursprovide crucial services, such as emergency care and police andfire protection. There is also a demand for round-the-clock workersin the transportation and manufacturing industries. Shift work is essential in our24-hour society. Our bodies,however, are regulated by a different clock.

Internal Circadian Clock

Humans are regulated by an internal body clock that causes themto be active or sleepy based on different phases of each 24-hourday. For most people, the desire to sleep is greatest when it isdark outside, and the need to be alert and active is greatest whenit is daylight.When people don't follow this internal schedule, it can affect their health. Nearly 10% of shift workers are diagnosed with delayed sleep phase syndrome. It is a sleep disorder characterized by late bedtime and waking 2 hours later than normal or desired times on most days. It is also found in people who do swing (or rotating) shift work. Even though people working swing shifts occasional work "normal" hours, their bodies do not have enough time to adjust to changing sleep schedule.

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