TUCSON, Arizona, Aug. 23 (TNSjou) -- The University of Arizona's Health Science issued the following news release: * * * Researchers explored the link between sedentary behavior and risk of dementia and found that type of activity matters when it comes to brain aging. * * * Adults ages 60 and older who sit for long periods watching TV or engaging in other passive, sedentary behaviors may be at increased risk of developing dementia, according to a new study by University of Arizona and Univer  more