Cool article, this reminds me of how the memory championships mentioned in Joshua Foer's book "Moonwalking With Einstein" (http://www.amazon.com/Moonwalking-Ein

Cool article, this reminds me of how the memory championships mentioned in Joshua Foer's book "Moonwalking With Einstein" (http://www.amazon.com/Moonwalking-Einstein-Science-Remembering-Everything/dp/159420229X/ref=sr_1_1?ie=UTF8&qid=1317239250&sr=8-1 http://www.amazon.com/Moonwalking-Einstein-Science-Rememberi...) all workout and watch their personal fitness in order to optimize their mental performance. Gary Kasparov used to also exercise a lot too prior to chess competitions.