People can input criteria such as their budget, how often the grocery shopping, desirable nutrition intake, size of the family, location, etc.

FORBES: Two Examples of Participant Diversity

The National Institute on Aging and the Alzheimer's Association are soliciting opinions about the criteria online and hope that there's enough input to publish them in early 2011, Carrillo said.

CNN: Children of Alzheimer's sufferers want to know their risk