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[Chronobiologic features in a 12-hour working day]

S Vidacek1, B Radosević-Vidacek

  • 1Institut za medicinska istrazivanja i medicinu rada, Zagreb.

Arhiv Za Higijenu Rada I Toksikologiju
|December 1, 1994
PubMed
Summary

Extended 12-hour workdays reduce performance and safety while increasing fatigue, especially during night shifts. Workers may prefer longer hours for more free time, despite health risks.

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Area of Science:

  • Occupational Health
  • Human Factors Engineering
  • Sleep Science

Context:

  • Review of studies on 12-hour workdays.
  • Analysis of performance, alertness, safety, and fatigue.
  • Focus on night shift work and sleep debt.

Purpose:

  • To synthesize research on the consequences of extended work hours.
  • To examine the relationship between work duration, fatigue, and safety.
  • To understand worker preferences for work schedules.

Summary:

  • 12-hour workdays are linked to decreased performance efficiency, alertness, and safety.
  • Extended shifts, particularly night shifts, exacerbate fatigue and increase accident risk due to sleep debt.
  • Despite negative effects, workers often prefer longer hours for increased personal time.

Impact:

  • Highlights the occupational health risks associated with long work hours.
  • Informs policies on work scheduling to mitigate fatigue and enhance safety.
  • Underscores the trade-off between work demands and personal time preferences.

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