Sleep medicine
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Shift work disorder (SWD) is characterized by symptoms of excessive sleepiness during work hours or insomnia during allotted daytime sleep hours, as well as by a disruption of the circadian rhythm. Many shift workers with SWD experience significant social, behavioral, and health problems as a result of this disorder. SWD is associated with a higher risk of occupational and motor vehicle accidents, and thus poses a public health risk. ⋯ While no therapies (pharmacological or nonpharmacological) can restore altered circadian cycles to baseline levels, proper identification and management of SWD will likely reduce its co-morbidities and improve the quality of life for individuals with this disorder.