Sleep is important for optimal cognitive functioning across the lifespan. Among older adults
(≥ 55 years), self-reported short and long sleep durations have been repeatedly, albeit …

Context: Increasing evidence suggests that circadian and sleep parameters influence
cognitive function with aging. Objective: To evaluate observational studies of sleep duration …

Multiple studies have examined associations between sleep and cognition in older adults,
but a majority of these depend on self-reports on sleep and utilize cognitive tests that assess …

Objectives In older adults, both short and long sleep duration are associated with lower
cognitive function, suggesting an inverted U-shaped association between sleep duration …

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 …

OBJECTIVE: Some epidemiological data are available on the association between sleep
duration and sleep quality, sleep complaints, and the aging related cognitive impairment in …

Abstract Background The World Alzheimer Report showed that 46.8 million people suffered
from dementia in 2015. This study examined how the duration and quality of sleep are …

Importance An association between sleep duration and the trajectory of cognitive decline
has not been conclusively demonstrated. Objective To investigate the association between …

Alterations in sleep patterns are common among older adults; further, short and long sleep
durations have been linked with impaired cognitive performance in older individuals. Yet …

Purpose Previous researches have shown inconsistent findings on the relationship between
sleep duration and cognitive disorders (including cognitive decline, dementia, Alzheimer's …