^caffeine has been found to enhance both working memory and short-term storage memory. A study published in the August 2007 issue of "Neurology" showed that elderly women who drank three cups of coffee or more a day had less decline in both working and storage memory compared to controls. A more recent, study published in the July 2009 issue of "Journal of Alzheimer's Disease," showed that caffeine can reverse the symptoms of Alzheimer's disease in aging mice. The researchers found that when the mice were given caffeine that corresponded to about five cups of coffee a day, the initial signs of cognitive impairment were reversed.
Read more: http://www.livestrong.com/article/383334-the-effects-of-caffeine-on-short-term-memory/#ixzz2TbdfvVQW^