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Alzheimer's Disease - What Happens

Researchers have discovered changes that take place in the brains of people who have Alzheimer's disease. These brain changes may cause the memory loss and decline in other mental abilities that occur with Alzheimer's disease. It's not fully understood why these brain changes occur in some people but not in others.

Alzheimer's disease gets worse over time, but the course of the disease varies from person to person. Some people may still be able to function relatively well until late in the course of the disease. Others may lose the ability to do everyday activities very early on.

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Early Warning Signs: When to Call the Doctor About Alzheimer's

Are you worried about an older loved one’s memory or behavior? Has your mom been getting lost while running errands? Has your dad started to ask the same questions over and over?  Signs of the early stages of Alzheimer’s disease aren’t always clear-cut -- they can be hard to distinguish from normal, age-related memory changes.To help guide you, here are the Alzheimer’s warning signs to watch for, along with advice about seeing a doctor and getting a diagnosis.

Read the Early Warning Signs: When to Call the Doctor About Alzheimer's article > >

  • The disease tends to get worse gradually. It usually starts with mild memory loss. It progresses to severe mental and functional problems and eventual death.
  • Symptoms sometimes are described as occurring in early, middle, and late phases. It's hard to predict how long each phase will last.
  • The average amount of time a person lives after developing symptoms of Alzheimer's disease is 8 to 10 years.

A person with severe dementia becomes more vulnerable to other illnesses, such as pneumonia.

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: October 29, 2012
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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