Science of Slumber: How Sleep Affects Your Memory by SciFri published on 2013-02-12T20:26:38Z We spend a lot of time sleeping (roughly one-third of our lives, according to the National Institutes of Health). But how much downtime do our brains really need? Experts discuss the links between sleep, memory, and cognition, and why our sleep patterns change as we age. Genre Science Comment by Oana Mondoc Need to take this on board. My memory's aging! 2013-02-15T11:39:34Z