This is an article providing an explanation about dementia and memory loss from Medline Plus which is the official website of the National Institutes of Health brought by the U.S. National Library of Medicine.
This is an article series from Kids Health a website which is part of the Nemours Foundation's Center for Children's Health Media which talks all about the memory.
Coping with Memory Loss: http://www.fda.gov/ForConsumers/ConsumerUpdates/ucm107783.htm
This is an article from FDA, the official website of the US Food and Drug Administration providing a comprehensive explanation about memory loss and its causes, preventions and coping resources.
This is an article from The Daily Evergreen in Washington explaining the benefits of eating fish, sunflower seeds, eggs and quinoa for the brain especially the improvement of the memory.