"The nice thing about this test...it's peanut butter and a ruler."

A little bit of peanut butter can go a long way - namely, in helping to diagnose Alzheimer's Disease.

Julie Samples, a University of Florida graduate student in neurology, was looking for a quick and easy way to test patients' cranial nerve I, also known as the smell nerve. So she came up with the peanut butter test, and the results of her small pilot study were recently published in the Journal of Neurological Sciences.

Samples' advisor, Dr. Kenneth Heilman, a professor of neurology and health psychology, told her, “'If you can come up with something quick, let's do it,'” Samples recalled.

Read more at the Ocala Star-Banner.