Odor Tests Could Help Detect Alzheimer’s Disease Before Onset of Symptoms, New Study Suggests

Odor Tests Could Help Detect Alzheimer’s Disease Before Onset of Symptoms, New Study Suggests
Odor identification tests may help track Alzheimer’s disease (AD) in persons at risk even before the onset of symptoms, a new study shows. The study, “Odor identification as a biomarker of preclinical AD in older adults at risk,” appeared in the journal Neurology. Gradual memory loss is observed in several types of dementia, including Alzheimer's. Although smaller memory lapses, such as forgetting familiar words or the location of objects, are observed early in the disease progress, pathological alterations in the brain may have been going on for as long as 20 years. As a result, methodologies to detect Alzheimer's disease prior to memory loss have been the focus of intense
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