NSC expo
Subscribe or Register
View Cart  

Earn recertification points from the Board of Certified Safety Professionals by taking a quiz about this issue.

What's Your Opinion?

Is the term "accident" acceptable, or should "incident" always be used?

Take the poll and add your comment.

Vote   Results

Get the news that's
important to you.

Sign up for Safety+Health’s free monthly newsletters on:

  • Manufacturing
  • Mining, Oil and Gas
  • Transportation
  • Worker Health and Wellness
  • Subscribe today
    Fatigue | Research/studies | Shift work

    Lack of sleep may damage shift workers’ brains

    March 26, 2014

    • / Print
    • Reprints
    • Text Size:
      A A

    Philadelphia – Chronic sleep deprivation may cause lasting damage in the brains of shift workers, suggests a new study from the University of Pennsylvania.

    As part of the study, researchers put mice on a sleep-wake schedule simulating shift work and then examined their brains. They found the mice lost 25 percent of their locus coeruleus neurons, which help control alertness.

    Researchers hypothesized that as the mice first began losing sleep, their brains adapted by making more of a protein that coordinates energy production. However, as the mice continued to lose sleep, production of the protein decreased and the locus coeruleus neurons began deteriorating.

    The study was published online March 19 in the Journal of Neuroscience.