Daytime sleepiness is associated with dementia and cognitive decline in older Italian adults: A population-based study

Daytime sleepiness associated with poor sustained attention in middle and late adulthood

“…Previous studies have reported that reaction times were correlated with psychometric intelligence test scores from a population-based cohort, although reaction times were measured by different methods [40]. Additionally daytime sleepiness was associated with cognitive dysfunction in the elderly [41], which may be postulated as an effect of impaired sustained attention. To confirm any association between sleepiness and cognitive function and to define the contribution of vigilant attention measured by PVT to cognition, a direct evaluation of PVT performance in relation to various cognitive domains is required.…”

Measurement of daytime sleepiness in the elderly

“…Perception, psychomotor function, and cognitive function may all be compromised to a greater degree and at a higher rate in the elderly. Indeed, cross-sectional as well as longitudinal studies show that daytime sleepiness is associated with cognitive decline and dementia in the elderly [14,31,33].…”

Longer Duration of Sleep and Risk of Cognitive Decline: A Meta-Analysis of Observational Studies

“…Previous observational epidemiological studies have reported that there is a link between self-reported sleep duration and various health-related conditions such as hypertension, obesity, diabetes, cardiovascular events or mortality, and stroke [2][3][4][5] . Among sleep problems, it has been reported that excessive daytime sleepiness increased the risk of cogni-tive decline, as measured using the Mini-Mental State Examination and Geriatric Depression Scale scores [6,7] . Also, cross-sectional studies [8][9][10][11] using self-reported assessments of sleep duration reported the associations between longer duration of sleep and cognitive decline.…”