Alzheimer's Association develops new tool


It's designed to prevent patients from wandering, which about 60 percent of Alzheimer's patients do at some point.

The group's new "Comfort Zone" system uses a transmitter and a web-based mapping system. Families get a text message or an email if their loved ones leave a virtual perimeter zone.

The system could prevent accidents among the five million Americans who have Alzheimer's disease.

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