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Health A-Z

Medical Content Created by the Faculty of the
Harvard Medical School

Prognosis

The outlook for dementia depends on the cause and can vary by individual. For example, early treatment of dementia caused by a vitamin deficiency can lead to full recovery of memory. If stroke is the cause, the person's memory loss can remain stable for years. Drugs may slow the rate of decline for some people with Alzheimer's disease. In many cases, however, the disorder gradually gets worse. Depending on the cause, the person's age, general health and the availability of treatments, life expectancy can be as short as a few months or as long as 15 to 20 years.

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From Health A-Z, Harvard Health Publications. Copyright 2007 by the President and Fellows of Harvard College. All rights reserved. Written permission is required to reproduce, in any manner, in whole or in part, the material contained herein. To make a reprint request, contact Harvard Health Publications. Used with permission of StayWell.

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