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Shift Work Dulls Brain Performance
davidshenba writes: Scientists warn that working in unusual shifts can prematurely age the brain and dull intellectual ability. Three thousand people in France were given tests of memory, speed of thought and wider cognitive ability. People with more than 10 years of shift work history had the same results as someone six and a half years older. The brain naturally dulls as we age, but the researchers said working antisocial shifts accelerated the process.
Maybe people who couldn't get anything better than "shift work" had duller brains to start with.
While this is certainly a possibility, even if you took a quick glance at TFA (I know, I know...), you might find out there seems to be more than that:
Those with more than 10 years of shift work under their belts had the same results as someone six and a half years older. The good news is that when people in the study quit shift work, their brains did recover. Even if it took five years.
Why would dumb people "recover" lost brain function if they never had it in the first place?
And once you read that in TFA, it might actually make you want to click on the link to the study itself, where you can discover the methodology in the abstract without even reading the article:
Methods: We conducted a prospective cohort study of 3232 employed and retired workers (participation rate: 76%) who were 32, 42, 52 and 62â...years old at the time of the first measurement (t1, 1996), and who were seen again 5 (t2) and 10 (t3) years later. 1484 of them had shift work experience at baseline (current or past) and 1635 had not.
"Prospective cohort" -- i.e., they had a control group, which they measured periodically. The shift workers did significantly worse....
(Why is it that everyone at Slashdot seems to automatically assume every study is done by idiots who could not possibly foresee their first possible objection? And why do such posts get modded up? There are lots of crap studies out there, but not every obvious objection was unforeseen by most research teams. Sorry for the exaperation, but if you're not even going to bother to RTFA, stop modding idiots up who also haven't.)
I read the abstract; the actual article is paywalled, which is why I asked the question.
But thanks for assuming I was criticizing the study when I said nothing of the sort and simply had a question about its methods.