Smell test may detect early stages of Alzheimer's disease, studies show

July 13, 2014 6:46 PM

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New research suggests that a faltering sense of smell might signal the early stages of Alzheimer's disease, and that an inexpensive, low-tech smell test could spot who needs more extensive screening for dementia.

In two different studies, the decreased ability to identify odors was associated with the loss of brain cell function and progression to Alzheimer's disease.

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