What sleep characteristics predict cognitive decline in the elderly?

Keage, Hannah Amy Dianne; Banks, Siobhan; Yang, Kit Ling; Morgan, Kevin; Brayne, Carol; Matthews, Fiona Elaine

Abstract

Background: Sleep is critical for optimal cognitive function, but as we age both cognitive impairment and sleep problems increase. Longitudinal, population-based studies can be used to investigate temporal relationships between sleep and cognition. Methods: A total of 2012 cognitively unimpaired individuals 65. years and over were drawn from the MRC Cognitive Function and Ageing Study (CFAS). They answered self-reported measures including: insomnia symptoms and age of onset, night time wakings, snoring, sleep onset latency, napping, daytime sleepiness and duration of night time sleep. Cognition was measured via the Mini-Mental State Examination. Results: It was found that daytime napping at baseline was associated with a lower risk of cognitive decline at two and 10 years, and that obtaining ≤ 6.5. h of night-time sleep and excessive daytime sleepiness at baseline were associated with an increased risk at 10 years. Conclusions: Daytime napping, night-time sleep duration, and excessive daytime sleepiness may be modifiable behaviours open to intervention strategies, or, clinical indicators of future decline in older individuals. © 2012.

Citation

Keage, H. A. D., Banks, S., Yang, K. L., Morgan, K., Brayne, C., & Matthews, F. E. (2012). What sleep characteristics predict cognitive decline in the elderly?. Sleep medicine, 13(7), 886-892. https://doi.org/10.1016/j.sleep.2012.02.003

• Journal Article Type: Article
• Publication Date: Aug 1, 2012
• Deposit Date: Dec 8, 2023
• Journal: Sleep Medicine
• Print ISSN: 1389-9457
• Electronic ISSN: 1878-5506
• Publisher: Elsevier
• Volume: 13
• Issue: 7
• Pages: 886-892
• DOI: https://doi.org/10.1016/j.sleep.2012.02.003
• Public URL: https://hull-repository.worktribe.com/output/4454720