The word “dementia” is used to describe a variety of symptoms caused by problems in the brain. These symptoms are serious enough to interfere with daily activities, and can include problems with memory, thinking, language, orientation and behavior. Dementia is a general term that does not specify what underlying condition or disease is causing symptoms.
Alzheimer’s is the degenerative brain disease thought to be the most common cause of dementia. Many people confuse these terms and use the label “Alzheimer’s” to describe symptoms that could be caused by other conditions or diseases.
In a study published in 2007, researchers estimated the percentages of older Americans with dementia by age range:
Age 71-79 5%
Age 80-89 24%
Age 90 and older 37%.
Learn More:
Tangled Neuron Posts:
What Causes Memory Loss?
David Shenk's Talk on Alzheimer's at the Early Memory Loss Forum
Does Memory Loss Mean Loss of Self?
Education, Cognitive Reserve and Alzheimer’s
Read about the October 2007 Early Memory Loss Forum, a conference for people with early memory loss.
Other Resources:
National Institute on Aging’s “Understanding Symptoms and Stages of Alzheimer’s Disease"
National Institute of Neurological Disorders and Stroke’s Dementia Information Page
Alzheimer’s Disease International
Alzheimer’s Society
