Scientists at Rush University Medical Center in Chicago, IL conducted a study and found following the DASH (Dietary Approach to Stop Hypertension) and Mediterranean diets may help slow the aging-related cognitive decline, which occurs in older people.The cohort study involved 826 older subjects in Chicago who participated in the Memory and Aging Project. (David LIu, PHD)Tangney CC, Li H, Wang Y, Barnes L, Schneider JA, Bennett DA, Morris MC.  Relation of DASH- and Mediterranean-like dietary patterns to cognitive decline in older persons.  Neurology. 2014 Sep 17.