Associations between demographics, sleep, cognition and CR proxies
In 135 cognitively unimpaired older adults from the Age-Well cohort aged 65 and above (mean age = 69.4 ± 3.8; 83 women), a polysomnography was acquired and allowed to obtain the proportion of SWS relative to total sleep time. A neuropsychological battery allowed to compute an episodic memory and an executive function composite score (see Methods for details). Finally, the number of years of schooling (education), the Cognitive Activities Questionnaire (CAQ) [