I know a guy who had a weird habit of using his mouth to clean his golf ball. He eventually got oral cancer.

Except the data doesnt back up that assertion. Golf course employees and golfers have no higher rates of than the public at large. So what gives?

If the very people who spend most of their waking lives on the grounds and among those fertilizers and pesticides do not have any great instance, maybe just maybe its something else. Like the gallons of unregulated chemicals that are in those tract houses that were all built around the same time...

one example is the drywall was used extensively in the 90's. Its makeup banned in the country of origin, China but its product was used all throughout the US for decades.