A non-invasive handwriting analysis technique developed at the University of Haifa and Rambam Medical Center can detect the onset of Parkinson’s disease. Changes in handwriting occur years before a clinical diagnosis can be made. Much safer than current tests.
http://www.jpost.com/Health-and-Science/Handwriting-assessment-can-be-used-for-early-detection-of-Parkinsons-disease-325798