What causes dementia? NIH Senior Health (USA) Outline's the risk factor that could lead to development of dementia in an easy to read format. Alzheimer Association (USA) Describes common myths that exist regarding dementia and provide accurate information to debunk the myths. Alzheimer Association (USA) Give information on risk factor that increase the risk of developing dementia. National Institute on Aging (PDF Booklet) (USA) Provides information about risk factors and potential methods of preventing dementia in an easy to read booklet.