pawsplay, 
https://undark.org/2024/03/06/fluoride-drinking-water/?utm_source=pocket-newtab-en-us&fbclid=IwAR0K7oBt_Zd-RYeBdPvJKuxxoyIdz0_dYqMwe2yEyLH_WJ2QoVI87m19XrM
I was talking with a biochemist friend of mine about hydrofluoric acid used in glass etching. She was outraged at it being used by someone outside a laboratory setting. I was like, okay, but doesn't some fluoride naturally produce hydrofluoric acid, like the same stuff you put in your teeth? And she was like, "I don't put that in my mouth."
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