Use this comprehensive guide to learn about the causes, signs, symptoms, treatment and medications for dementia; get strategies for living with dementia and find resources for getting medical help, support, self care and prevention of dementia.

See Discovery Health's complete Guide to Autism for information on autism causes, treatments and community support.

The Alzheimer's Association estimates that Alzheimer's disease and dementia triple the health-care costs for afflicted seniors.

Find out what you need to know about the symptoms, causes and treatments for this chronic, severe and disabling brain disease.