The Different Dementia's

I see more and more articles about Alzheimer’s disease and dementia.  I’m not sure I know the difference.  Please explain the terms to me. 

Sincerely, Bob, Orland

Dear Bob, 

Dementia is the “umbrella” medical term for several types of diseases which cause damage to the brain.  The five changes one will see with all dementias are (1) memory loss (2) changes in speech (3) changes in behavior (4) difficulty doing tasks such as bathing and dressing and (5) inability to think abstractly, make sound judgments and carry out complex tasks.  Alzheimer’s disease is one type of dementia and accounts for 60-80% of all cases of dementia.  Vascular dementia which is caused by decreased blood flow to the brain is second in the number of cases.  Others are dementia with Lewy bodies, later stages of Parkinson’s disease, front temporal dementia, Creutzfeldt-Jakob disease and hydrocephalus caused by the build up of fluid in the brain.  Because of the expected dramatic increase in the number of people with Alzheimer’s disease as the Baby Boomers age, expect to see more articles about this disease. 

Sincerely, Lyn