The findings that Parkinson's rates are higher in the "Rust Belt" states of the US suggest a link between exposure to environmental toxins, such as pesticides and heavy metals, and an increased risk. We must look into the impact of industrialization on Parkinson's risk to explain why some people with genetic risk factors for the disease get it in some geographic regions while others don't.
Environmental factors are important to explore, but there's a clear causal link between rising economic debt and critical illnesses like cancer, heart disease, and lung disease. Parkinson's is a costly disease for patients and their caregivers to treat. Broader research and state intervention are needed on the correlation between this debilitating disease and economic stress.