For the majority of people living with Alzheimer's disease, the condition tends to progress slowly over a number of years. However, for some, the disease may progress much more quickly. There are factors and complications that may cause a sudden decline in an Alzheimer's patient but these can often be overcome if treated quickly and the person will then revert back to a slower progression of the disease. MORE: Three experimental tests for early Alzheimer's detection According to the Mayo Clinic, some of the common reasons why an Alzheimer's disease patient may experience a sudden progression of the condition include:

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