Early signs may indicate Alzheimer's

October 13, 2009 New research shows that a decline in spatial skills, such as the ability to read a map or do a jigsaw puzzle, may be a more accurate prediction of the disease.

The study finds that three years before actually being diagnosed, many people start having trouble perceiving the distance between objects.

A sharp decline in memory skills usually isn't apparent until one year before diagnosis.

The Archives of Neurology study may help doctors identify Alzheimer's at an earlier stage.

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