Distinct mental fatigue mechanisms under prolonged work and night shifts Implications for safety management in a real-world oil drilling site

Jun 9, 2026Journal of occupational and environmental medicine

Different mental fatigue causes during long daytime and night work shifts and their safety risks at an oil drilling site

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Abstract

The machine learning model achieved a 93.46% classification accuracy for identifying mental fatigue in workers.

  • Distinct heart rate changes were observed under prolonged work and night-shift conditions, indicating effects on the body's stress response.
  • EEG analysis revealed significant changes in brain activity, particularly in the α band, associated with mental fatigue.
  • Increased functional connectivity was noted in the left frontal lobe, suggesting alterations in cognitive processing during fatigue.
  • Night-shift work produces different fatigue characteristics compared to day shifts, highlighting the need for specific safety management strategies.

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Full Text

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