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Shift Work and Sleep Disturbances

  • T. Åkerstedt

Abstract

Formally, the term “shift work” refers specifically to an arrangement of work hours that uses two or more teams (shifts) to cover the time needed for production. Whereas two-shift work usually covers only daylight hours, three-shift work also covers the night. Shifts are often changed around 0600, 1400, and (if a night shift is included) 2200 hours, although many companies employ earlier or later times. In Europe the teams usually rotate between the shifts, whereas in the United States assignment to a certain shift is often permanent, at least for a considerable time, before seniority allows transfer to another shift. Permanent night work, the watch system at sea, and roster work are other varieties of work hour arrangements. The latter (roster work) is similar to conventional shiftwork, only somewhat more irregular and “customized” to particular needs, usually in the service sector.

Keywords

Circadian Rhythm Sleep Disturbance Night Shift Sleep Loss Multiple Sleep Latency Test 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • T. Åkerstedt
    • 1
  1. 1.IPM and Department of Stress ResearchKarolinska InstituteStockholmSweden

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