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Parkinson’s toll on human brain — harmed by herbicides — is plainly visible in magnetic scans
Key Excerpts from Article on Website of NBC News (California affiliate)
Posted: June 10th, 2026
https://www.kget.com/news/local-news/parkinsons-toll-on-huma...
Jacquie Sullivan, the longest serving member of the City Council in Bakersfield history, is now in retirement, battling a foe tougher than any she faced in seven elections: Parkinson’s disease. Kern County [is] the largest consumer of the deadly herbicide Paraquat in California. Over a five year period, 2017 to 2021, Kern County farmers sprayed 1.2 million pounds of the stuff on local ag land, along with tons of other herbicides. No wonder Kern County is also No. 1 in the state for Parkinson’s disease, an incurable neurodegenerative disorder. Loss of smell and shoulder pain are among the early symptoms. Tremors, slowing of movement, difficulty sleeping and stiffness can come later. Then in more advanced stages, loss of cognitive ability. An estimated 117,000 Californians are living with the disease — the highest per capita level in the country. Those who work directly with certain chemicals, including herbicides, face even higher risks, up to 400% higher. But you don’t have to be in direct contact with the spray to suffer harmful exposure. Drinking well water in certain agricultural areas increases risk by 70 to 90%. In 2024, the State Assembly approved a “moratorium” on paraquat use that would have taken effect this past January, giving state regulators an opportunity to reevaluate paraquat and potentially reapprove the chemical with or without new restrictions. But state Senate amendments killed all the restrictions.
Note: The 1982 neurotoxic contaminant MPTP case was a turning point in showing how a single toxin could instantly trigger Parkinson’s by destroying a specific part of the brain. Scientists later discovered that paraquat — a widely used US pesticide banned in over 70 countries — attacks the brain in much the same way. As rates of Parkinson’s have tragically surged especially among the farming community, neurologists now say the disease is largely environmentally caused, driven by long-term exposure to chemicals like paraquat. A 2024 Politico article put it bluntly: “Parkinson’s is a man-made disease.”
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