See also: Alzheimer's and the Mediterranean Diet. The DASH diet is very similar to the Mediterranean Diet.

'Heart Healthy' Diet And Ongoing, Moderate Physical Activity May Protect Against Cognitive Decline
ScienceDaily (July 20, 2009) -- Eating a "heart healthy" diet and maintaining or increasing participation in moderate physical activity may help preserve our memory and thinking abilities as we age, a
'Heart Healthy' Diet And Ongoing, Moderate Physical Activity May Prote...