" in 1985, one of Hitler’s doctors, Ernst-Günther Schenck, revealed that the Führer “demanded interjections of invigorating and tranquilizing drugs,” including methamphetamine. It’s widely believed by many that Hitler’s subsequent and progressive Parkinson’s-like symptoms, if not his increasingly derelict mental state, were a direct result of his meth addiction. "

― Nick Reding , Methland: The Death and Life of an American Small Town