Parkinson's disease, a nervous system disorder, decreases muscle control and can eventually cripple the patient. According to Dr. William Koller, a Parkinson's expert at the University of Kansas Medical Center, people who handle herbicides, drink well water, or are around industrial pollutants, appear more likely to contract the disease. A new study conducted by researchers from the University of Calgary and the University of Saskatchewan tests the hypothesis that the occupational use of herbicides is asso