The relationships between sleep and cognitive decline: a 4‐year cohort study based on a population in a rural area of Xi'an, China

Abstract

Background: Sleep facilitates the removal of brain metabolites and the recovery of brain function; however, the effect of sleep on cognitive decline has not been fully established. This study aimed to analyze the role of sleep on cognitive decline after 4 years in middle‐aged and elderly people in rural areas of Xi’an.