Many older people and their families worry about a diagnosis of Alzheimer’s disease. (Credit: Nadya Chetah/Shutterstock)

Many people who have problems with their memory, especially if they are elderly, worry that they have Alzheimer’s disease, which afflicts at least 5.5 million people in the U.S. and brings tremendous burdens to families as well. This concern is paramount among those who have seen a family member, friend or colleague develop this insidious progressive disease.

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