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How golf-courses (and other grassy spaces) jeopardize your brain health.

New research published in JAMA³ highlights a huge health risk for those living nearby pristine and green golf-courses:

• Live within 1 mile? Your risk of developing Parkinson’s disease increases by 126%.
• Even 1–3 miles away, your risk rises between 92%–198%.
• Using well water near a golf course? Your Parkinson’s risk almost doubles.

Even when the researchers adjusted for other factors, the link stayed strong.

The culprit? Most likely pesticide use.

Pesticide use on U.S. golf-courses are 15X higher than used in Europe. And even higher than the amount of pesticides used on farms*.

*Obviously pesticide usage on farms is incredibly harmful because we’re directly eating the food grown there. But we’ll save that problem for it’s own edition of the Superpower Journal!

Golf courses typically use a toxic cocktail of herbicides (weed-killers), fungicides (mold-killers) and insecticides (bug-killers), which spread through the air and seeps into groundwater.

While the JAMA study doesn’t say pesticides directly cause Parkinson’s, the research consistently shows that more exposure = higher risk.

Pesticides may harm your brain through:

• Oxidative stress: Chemicals like glyphosate (a widely used herbicide) trigger harmful free radicals that damage vital dopamine-producing neurons⁴, which are essential for movement⁵.
• Inflammation: Pesticides cause ongoing, low-level inflammation⁶⁷, gradually killing these neurons.
• Protein misfolding: Pesticides encourage healthy proteins to misfold and clump into harmful deposits, a hallmark of Parkinson’s⁸.