Huffington Post | Are You One of 44 Million in the World Suffering Alzheimer's? Huffington Post The most common form of progressive dementia is Alzheimer's disease. Researchers estimate that Alzheimer's accounts for about 60 percent of all cases of dementia. The second most common cause of dementia is a stroke (including a TIA, transiet ischemtic ... New Study Finds Alzheimer's And Other Dementias Exact A Heavy Toll On Family ... Alzheimer's Association Hosts Annual Fall Caregiver Conference During Family ... Common Alzheimer's Drug Proves Benefit on Long Term |