laglag found this! Copper Leads to Protein Aggregation in Parkinson’s Disease July 7 2022 neurosciencenews.com/copper...
"Summary: Alpha-synuclein proteins form into unusual shapes when exposed to large quantities of copper ions. Researchers say the effect of environmental copper exposure on alpha-synuclein could play a role in the pathogenesis of Parkinson’s disease.
Copper exposure in the environment and the protein alpha-synuclein in the human brain could play an important role in the pathogenesis of Parkinson’s disease. "
I am one of those people that was always proud that I put all copper feed pipes in my house. None of that PVC for me!