In this photo taken Thursday, March 15, 2012, Doreen Watson-Beard walks from her neighbor's yard en route to her home in Leesburg, Fla. Watson-Beard, 49, is one of the millions of Americans living with Alzheimer's disease and other forms of dementia. (AP Photo/John Raoux)

Photo by: John Raoux

In this photo taken Thursday, March 15, 2012, Doreen Watson-Beard walks from her neighbor's yard en route to her home in Leesburg, Fla. Watson-Beard, 49, is one of the millions of Americans living with Alzheimer's disease and other forms of dementia. (AP Photo/John Raoux)