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Author Spotlight: Quantifying Pain Experience – An Illustrative Approach Using the Pain Body Diagram
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Night-shift work increases cold pain perception.

Christoph Pieh1, Robert Jank2, Christoph Waiß3

  • 1Department of Psychotherapy and Biopsychosocial Health, Danube-University Krems, Austria; Department of Psychosomatic Medicine, University Regensburg, Germany.

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|April 23, 2018
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Summary
This summary is machine-generated.

Night-shift work (NSW) significantly increases cold pain perception by 28%, with pain levels returning to normal after a recovery night. Mood changes, not sleepiness, are linked to this heightened pain sensitivity.

Keywords:
MoodNight shift workPain perceptionSleep deprivation

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Area of Science:

  • Pain perception research
  • Occupational health
  • Sleep science

Background:

  • Night-shift work (NSW) is linked to various health issues.
  • The specific impact of NSW on pain perception remains unclear.
  • This study examines NSW's effect on cold pain, mood, and sleepiness.

Purpose of the Study:

  • To investigate how night-shift work affects cold pain perception.
  • To explore the roles of mood and sleepiness in NSW-related pain changes.
  • To assess pain perception after a night shift and a recovery night.

Main Methods:

  • Quantitative sensory testing (QST) in healthy night-shift workers.
  • Assessed cold pain threshold and tonic cold pain after a habitual night, a 12-hour NSW, and a recovery night.
  • Measured sleep quality (PSQI), sleepiness (SSS), and mood (ASTS).

Main Results:

  • Tonic cold pain perception increased by 28% after NSW (p=0.007) and normalized after recovery.
  • Cold pain threshold showed a significant increase after NSW (p=0.04), but overall ANOVA was not significant (p=0.095).
  • Sleepiness and mood significantly changed post-NSW, with mood changes correlating with increased tonic cold pain (R=0.53, p=0.022).

Conclusions:

  • Night-shift work intensifies cold pain perception.
  • Increased pain sensitivity following NSW is more closely associated with mood alterations than with sleepiness.
  • Pain perception returns to baseline after a recovery night's sleep.