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Alzheimer disease is a brain illness that can happen in older adults. It is the most common cause of dementia. It is a progressive disease. This means it gets worse over time.
Alzheimer disease causes a series of changes to nerves of the brain. Some nerves form into clumps and tangles, and lose some of their connections to other nerves.
Doctors don’t fully understand what causes Alzheimer disease. But they think these may be some of the causes:
Age and family history
Abnormal protein deposits in the brain
Problems with a person’s immune system
The disease causes changes in behavior and thinking known as dementia. The symptoms include:
Personality and behavior changes
Problems with judgment
Problems communicating with others
Inability to follow directions
Lack of emotion
No single test is able to diagnose Alzheimer disease. Instead healthcare providers use a series of tests to rule out other health conditions. The tests may include:
A complete medical history. This may include questions about overall health and past health problems. The provider may ask how well the person can do daily tasks. The provider may ask family or close friends about any changes in behavior or personality.
Mental status test. This is a test of memory, problem solving, attention, counting, and language.
Standard medical tests. These may include blood and urine tests to find possible causes for the problem.
Brain imaging tests. CT, MRI, or positron emission tomography (PET) may be used to rule out other causes of the problem.
Alzheimer disease has no cure. Instead healthcare providers can help ease some symptoms. This can make a person with Alzheimer more comfortable. Treatment can also make it easier for their caregivers to take care of them.
Some medicines may help slow the decline of a person’s memory, thinking, and language skills. They may help with problems of behavior, such as aggression. They can lessen hallucinations and delusions. These medicines can work for some but not all people. And they may help for only a limited time. Medicines include:
In some cases, behavior problems can be caused by medicine side effects. Talk with the person’s healthcare provider about all medicines he or she is taking.
For a person with Alzheimer, it’s important to stay healthy. Good nutrition and physical and social activity are vital. A calm and well-structured environment will help. Make sure to keep up with healthcare appointments and managing other health conditions, such as diabetes.
A person with Alzheimer will need more caregiving over time. Talk with your healthcare provider about caregiving resources.
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