Ruhr University Bochum May 21 2026 An early start to treatment is crucial to successful therapy. A new sensor is helping with early detection. For the first time, therapeutically effective medications are now available for Alzheimer's disease. Effective symptomatic therapies also exist for Parkinson's disease. However, a prerequisite for successful treatment is early diagnosis - ideally through a simple blood test conducted as part of a preventive screening, even before clinical symptoms appear.