Simple peanut butter odor test helps determine whether or not a person suffers from Alzheimer’s disease. UF McKnight Brain Institute for Smell and Taste graduate student Jennifer Stamps and her colleagues have successfully conducted a pilot test in which a dollop of peanut butter and a ruler are used to measure smell sensitivity.
The results showed that people with early onset of Alzheimer’s had an impaired sense of smell on their left nostril compared to the right one. This is due to the fact that Alzheimer’s affects the first cranial nerve which is associated with sense of smell. By measuring how effectively people were able to smell the peanut butter, researches were able to determine if the test subject had Alzheimer’s. This is a simple test and quite inexpensive.