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The Scent of Change: How One Woman’s Nose Uncovered the Unseen Signs of Parkinson's Disease

On April 19, 2012, at a conference in Edinburgh, Tilo Kuna, a stem cell biologist, delivered a talk on Parkinson's disease. Following his presentation, a nurse named Joy Mill asked a peculiar question that would lead to unexpected discoveries in the realm of medical science: "Is there any research being done to understand why people with Parkinson’s smell different?" Initially, Kuna misinterpreted Joy's inquiry, believing she was referring to the common symptom of a loss of smell associated with Parkinson's. But Joy's observation stemmed from her personal experience—her husband Les had Parkinson's, and she noticed a significant change in his natural aroma post-diagnosis.