Study links shift work to cognitive impairment
The study findings suggest a potential link between shift work exposure and cognitive function impairment. Photo: dayamay, Pixabay, CC0
Toronto — Middle-aged and older adults who have worked the night shift or rotating shifts are significantly more likely to experience cognitive impairment, results of a recent study suggest.
Researchers from York University analyzed data from nearly 48,000 people 45-85 years old in the Canadian Longitudinal Study on Aging. The information included employment experience, work schedules and results of cognitive functioning tests.
Around 1 out of 5 participants reported a career history with shift work. Of those, workers whose current job included night shifts had a 79% higher rate of cognitive impairment than other workers. The participants who worked night shifts during their longest job had a 53% higher rate.
The researchers say circadian rhythm disruption caused by shift work may play a role. However, they stress that more research is needed “to confirm the association between shift work and cognitive impairment as well as any physiological pathways that underlie the mechanism.”
The study was published online in the journal PLOS One.
Post a comment to this article
Safety+Health welcomes comments that promote respectful dialogue. Please stay on topic. Comments that contain personal attacks, profanity or abusive language – or those aggressively promoting products or services – will be removed. We reserve the right to determine which comments violate our comment policy. (Anonymous comments are welcome; merely skip the “name” field in the comment box. An email address is required but will not be included with your comment.)