Five Ways to Reduce Your Risk of Dementiahttp://articles.mercola.com/sites/articles/archive/2005/04/27/dementia-risk.aspxParticipating in a variety of exercise activities may reduce the risk of dementia in older people -- and having variety in exercise seems to be even more important than how often, how long or how intense the exercise is performed, according to Johns HopkinsenCommunityServer 2008.5 SP1 (Build: 31106.3070)