Researchers have devised a new test to detect the early onset of Alzheimer’s Disease that involves measuring how far away a patient can smell a spoon full of peanut butter. Traditionally, Alzheimer’s disease is difficult to diagnose before symptoms start showing up, because there is no single test that can definitively determine whether a person has the degenerative brain disease. Under the newly devised test, results show a marked difference between the left and right nostril in patients having suspected early signs of Alzheimer’s. It is a weakness in the left nostril’s sensitivity that has shown a relationship to the degenerative disease.

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