Sir, I was surprised to read in Matthew Parris’s column (June 11) that asking “Who’s the Prime Minister?” is a new test for Alzheimer’s.
About 20 years ago you reported that this old test had been dropped because it had become too easy. This report has become a standing joke in our family: whenever I forget to do something — tie my shoelaces, say — my wife asks me: “Who’s the Prime Minister?” and I reply: “Mrs Thatcher.” In public places this causes mild consternation.
Philip Roe
St Albans, Herts