Pesticide
Or Biocide …. https://youtube.com/shorts/DtTcpRl7rkY
Thousands of U.S. farmers have Parkinson’s. They blame a deadly pesticide. - https://www.mlive.com/news/2025/12/thousands-of-us-farmers-have-parkinsons-they-blame-a-deadly-pesticide.html - Paraquat, a heavily regulated weed killer, is banned in more than 70 countries, but still legal in the United States. It's the subject of thousands of lawsuits claiming it’s linked to Parkinson’s disease.