Poor Sleep and Cognitive Function
April 12, 2011 by Dr. Marc Darrow, M.D.
Filed under Cognitive Function
Blackwell T, Yaffe K, Ancoli-Israel S, Schneider JL, Cauley JA, Hillier TA, Fink HA, Stone KL. Poor Sleep Is Associated With Impaired Cognitive Function in Older Women: The Study of Osteoporotic Fractures. The Journals of Gerontology Series A: Biological Sciences and Medical Sciences 61:405-410 (2006)
Researchers writing in the medical journal The Journals of Gerontology Series A: Biological Sciences and Medical Sciences say that Disturbed Sleep was related to poorer cognition.
From the article abstract:
Background. The association between objectively measured sleep and cognition among community-dwelling elderly persons remains understudied. This observational, cross-sectional analysis examined this association.
Methods. Results are from 2932 women (mean age 83.5 years) in the Study of Osteoporotic Fractures between 2002 and 2004. Cognitive function was measured…Sleep parameters measured objectively using actigraphy included total sleep time, sleep efficiency, sleep latency, wake after sleep onset (WASO), and total nap time.
Conclusion. Objectively measured disturbed sleep was consistently related to poorer cognition, whereas total sleep time was not. This finding may suggest that it is disturbance of sleep rather than quantity that affects cognition.
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