The miracle 11-minute routine that’s kept Charles fighting fit – and can whittle your waist and give your heart a boost
King Charles’s morning routines have long been a subject of speculation – according to Prince Harry in his autobiography Spare, his father is fond of doing headstands in his undies. But there’s another secret to the monarch’s slim stature – an exercise regimen devised by the Royal Canadian Air Force which takes only 11 minutes…