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The study, published in the journal Sleep, is based on data from more than 26,000 participants in the Canadian Longitudinal Study on Aging, all ages between
"We found that insomnia was associated with worse memory performance compared to those who had only some symptoms of insomnia or no sleep problems at all," said
Jean-Louis Zhao of Université de Montréal is co-leader of the
Big data and sharp focus
Unlike previous studies on sleep quality, Cross said, this study benefited from its huge dataset and focus
For the study, the researchers divided the subjects into three categories: those who reported no sleep problems at baseline 2019, those with some insomnia symptoms, and those who
"However, there's also some good news: Sleep disorders like insomnia are treatable," Cross added
The Canadian Longitudinal Study on Ageing is funded
Jean-Louis Zhao, Nathan Cross, Chun W Yao, Julie Carrier, Ronald B Postuma, Nadia Gosselin, Lisa Kakinami, Thien Thanh Dang-Vu.