Knowledge Tree
Relations (1)
related 3.17 — strongly supporting 8 facts
Sleep duration is investigated as a potential risk factor for dementia [1], with multiple studies examining the correlation between the two {fact:1, fact:2, fact:7}. Research has specifically analyzed how varying sleep durations impact the risk of developing dementia {fact:4, fact:5, fact:8}.
Facts (8)
Sources
Impact of sleep duration on executive function and brain structure nature.com 4 facts
claimResearchers have investigated sleep duration as a potential risk factor for dementia.
measurementA longitudinal analysis of a 7,959-person sub-cohort of the Whitehall study found that sleeping six hours or less is associated with a higher risk of dementia compared to sleeping seven hours, while sleeping eight hours or more was not associated with higher risk.
claimHenry et al. investigated the relationship between sleep duration, cognition, and dementia using a Mendelian randomization study.
referenceA Mendelian randomization study published in the International Journal of Epidemiology in 2019 examined the relationship between sleep duration, cognition, and dementia.
Improvement in sleep duration was associated with higher cognitive ... aging-us.com 3 facts
claimThe three most important prospective studies regarding interventions to reduce the risk of cognitive decline or dementia did not include sleep duration as a factor.
claimThe study challenged previous ideas that increased or decreased sleep duration would lead to lower cognition, noting that a total of nine studies have previously examined the effect of changes in sleep duration on cognitive function or the risk of dementia.
claimFive studies have linked increased sleep duration to lower cognition or a higher risk of dementia.
U shaped association between sleep duration and long ... nature.com 1 fact
referenceSabia, S. et al. authored the study 'Association of sleep duration in middle and old age with incidence of dementia', published in Nature Communications in 2021.