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Changes in Sleep Duration and the Risk of Cognitive Impairment Among Older Adults Aged 65 Years and Over - China,
Yue Wei1, Heming Pei1, Jinlong Lin1
1Institute of Population Research, Peking University, Beijing, China.
What Is Already Known About This Topic?:
Earlier studies indicated that shorter or excessive sleep duration at baseline was related to cognitive impairment. Yet few studies have been concerned with the association between sleep duration changes and cognitive performance, especially in low- and middle- income countries.
What Is Added By This Report?:
A prospective cohort study suggests that maintaining moderate sleep duration may lead to optimal cognitive performance. Either decreasing, increasing, or keeping a longer sleep duration is associated with the risk of cognitive impairment among Chinese elderly aged 65 years and over.
What Are The Implications For Public Health Practice?:
Maintaining a moderate sleep duration may be a protective factor against cognitive impairment. Therefore, we need to pay attention to the seniors' sleep health and prevent or delay the progression of cognitive impairment through sleep therapy.
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