Huffington Post UK | A 'Sniff Test' Could Be Useful In Diagnosing Alzheimer's Disease Huffington Post UK MCI can then progress over a period of years into Alzheimer's dementia. David R. Roalf, PhD, an assistant professor in the department of Psychiatry at Penn said: “There's the exciting possibility here that a decline in the sense of smell can be used to ... A simple 'sniff test' is accurate in diagnosing dementia early on 'Sniff test' may be useful in diagnosing early Alzheimer's disease 'Sniff test' combined with cognitive test to find out risk of Alzheimer's and dementia |