Medical Daily | Alzheimer's Disease Sniff Test: Identifying Odors May Detect Early Memory Decline, Dementia Medical Daily Our nose helps us identify odors, from a cup of coffee to the smoke of a cigarette. As we age, an impaired sense of smell is normal, but completely losing our sense of smell could be a sign of brain damage. Two studies presented at the Alzheimer's ... UPSIT 'Smell Test' Could Aid In Early Detection Of Alzheimer's Smell test may be early predictor of dementia, Alzheimer's disease Sight and smell tests offer key to dementia diagnosis | Irish Examiner |