Image design: Serial/Trash [New research challenges common beliefs about the origin of the disease and draws attention to the nerve cells’ ability to tidy up.]{style=“font-family: "helvetica neue" , "arial" , "helvetica" , sans-serif;”} [ ]{style=“font-family: "helvetica neue" , "arial" , "helvetica" , sans-serif;”} [Parkinson’s disease is a devastating neurological disorder where nerve cells in the brain slowly degenerate and die.