Circadian rest-activity rhythms predict future increases in depressive symptoms among community-dwelling older men.

Abstract

OBJECTIVE Circadian rest-activity rhythms (CARs) have been cross-sectionally associated with depressive symptoms, although no longitudinal research has examined whether CARs are a risk factor for developing depressive symptoms. METHODS We examined associations of CARs (measured with actigraphy over a mean of 4.8 days) with depressive symptoms (measured… (More)
DOI: 10.1016/j.jagp.2014.06.007

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