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Concurrent changes in sleep and cognitive function during retirement transition: the Finnish retirement and aging study

Author

Listed:
  • Tea Teräs

    (University of Turku and Turku University Hospital
    University of Turku and Turku University Hospital)

  • Saana Myllyntausta

    (University of Turku)

  • Jaana Pentti

    (University of Turku and Turku University Hospital
    University of Turku and Turku University Hospital
    University of Helsinki)

  • Jesse Pasanen

    (University of Turku and Turku University Hospital
    University of Turku and Turku University Hospital)

  • Suvi Rovio

    (University of Turku and Turku University Hospital
    University of Turku and Turku University Hospital
    University of Turku)

  • Sari Stenholm

    (University of Turku and Turku University Hospital
    University of Turku and Turku University Hospital
    Turku University Hospital and University of Turku)

Abstract

The transition to retirement has been shown to be accompanied by increased sleep duration and improved sleep quality. In addition, some studies suggest accelerated decline in cognitive function in post-retirement years. However, less is known about their interconnectedness. The aim of this study was to examine the concurrent changes in sleep and cognitive function during retirement transition. The study population consisted of 250 public sector workers (mean age before retirement 63.1 years, standard deviation 1.4) from the Finnish Retirement and Aging study. The participants used a wrist-worn ActiGraph accelerometer, responded to the Jenkins Sleep Problem Scale and underwent cognitive testing annually before and after retirement. Computerized Cambridge Neuropsychological Test Automated Battery (CANTAB®) was used to evaluate learning and memory, working memory, sustained attention and information processing, executive function and cognitive flexibility, and reaction time. Cognitive function improved in all cognitive domains, except for reaction time, during 1-year retirement transition period. The improvement was temporary in learning and memory, working memory and executive function and cognitive flexibility, which plateaued in post-retirement years. The participants were categorized into constantly short (49%), increasing (20%), decreasing (6%), and constantly mid-range (25%) sleep duration; and constantly without (36%), increasing (10%), decreasing (16%), and constantly with (38%) sleep difficulties. There were no associations between changes in sleep duration or sleep difficulties and cognitive function during retirement transition. Cognitive function improves temporarily during transition to retirement, but the improvement is independent of changes in sleep characteristics.

Suggested Citation

  • Tea Teräs & Saana Myllyntausta & Jaana Pentti & Jesse Pasanen & Suvi Rovio & Sari Stenholm, 2025. "Concurrent changes in sleep and cognitive function during retirement transition: the Finnish retirement and aging study," European Journal of Ageing, Springer, vol. 22(1), pages 1-11, December.
    • Handle: RePEc:spr:eujoag:v:22:y:2025:i:1:d:10.1007_s10433-025-00876-8
    DOI: 10.1007/s10433-025-00876-8
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    References listed on IDEAS

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    1. Celidoni, Martina & Dal Bianco, Chiara & Weber, Guglielmo, 2017. "Retirement and cognitive decline. A longitudinal analysis using SHARE data," Journal of Health Economics, Elsevier, vol. 56(C), pages 113-125.
    2. Bonsang, Eric & Adam, Stéphane & Perelman, Sergio, 2012. "Does retirement affect cognitive functioning?," Journal of Health Economics, Elsevier, vol. 31(3), pages 490-501.
    3. Charlotta Nilsen & Monica E Nelson & Ross Andel & Michael Crowe & Deborah Finkel & Nancy L Pedersen & Vanessa Taler, 2021. "Job Strain and Trajectories of Cognitive Change Before and After Retirement," The Journals of Gerontology: Series B, The Gerontological Society of America, vol. 76(7), pages 1313-1322.
    4. Mirkka Lahdenperä & Marianna Virtanen & Saana Myllyntausta & Jaana Pentti & Jussi Vahtera & Sari Stenholm, 2022. "Psychological Distress During the Retirement Transition and the Role of Psychosocial Working Conditions and Social Living Environment," The Journals of Gerontology: Series B, The Gerontological Society of America, vol. 77(1), pages 135-148.
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