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Made in the Shade

For people who do shift work, sunglasses can help

(HealthDayNews) -- You have a problem -- your boss wants you on the night shift, but your body is absolutely convinced that night is sleep time and refuses to cooperate.

You might try melatonin, caffeine and loud music, or you might take the advice of the Biological Rhythms Research Lab at Rush-Presbyterian-St. Luke's Medical Center, Chicago, and start wearing sunglasses for a week before you change shifts.

As reported in the journal Sleep, many people can adapt their circadian rhythms by just a moderate change in light exposure during the day.

For people who have this ability, changes in body temperature and other daily cycles begin to appear after 3 to 5 days of light reduction.

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