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How many stages of Alzheimer's are there?

1 answer | Last updated: Sep 13, 2014
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How many stages of Alzheimer's are there?
 

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Paula Spencer Scott, contributing editor, is the author of Surviving Alzheimer's. A Met Life Foundation Journalists in Aging fellow, she writes extensively about health...
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There are several different ways to count the stages of Alzheimer's, because there is no single, standard classification.

Most physicians refer to three main stages: early See also:
Alzheimer's Myths

See all 897 questions about Alzheimer's and Other Dementias
(mild), middle (moderate), and late (severe). Some physicians and organizations, including the Alzheimer's Association, refer to seven stages of Alzheimer's disease, with stage 1 being "no impairment." Others refer to four stages of Alzheimer's or other forms of dementia: mild, moderate, moderately severe, and severe.

Whatever the stage names, because dementia of the Alzheimer's type is a progressive disease, everyone travels through its stages in the same order. The length of time a person spends in each stage is highly individual, however. Some people move through the disease from diagnosis to death in three years, while others live 20 years or longer after an early-stage diagnosis.

 

 
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