http://articles.mercola.com/sites/articles/archive/2004/10/06/walking-dementia.aspxWhat is good for the heart may be good for the brain. According to research in patients older than 70, regular walking may help prevent mental decline and Alzheimer's disease. Crossword puzzles and other mental exercises may help reduce Alzheimer's risksenCommunityServer 2008.5 SP1 (Build: 31106.3070)