I lost my nan to an aggressive form of Alzheimer’s. This was in 1998, but even today, almost 20 years on, I can still remember everything in vivid detail, from the moments when we cried with despair that there was nothing we could do, and laughed out loud because it was the only thing to do. Alzheimer’s takes away the person you love, even if they are still there in body, and despite the fact that it affects so many people – 1 in 14 people over 65, 1 in 6 people over the age of 80, it is still a disease that we seem to know so little about,…