@RATTER: "Look at all the dementia we now have and age related diseases, most of these people would have died naturally years ago, just where is the cut off point? The world is going crazy!!"
I heard quite an interesting rephrasing of how we think about dementia from Julianne Moore, talking about "Still Alice"
http://www.imdb.com/title/tt3316960/
It's from the 13th Feb podcast here:
http://www.bbc.co.uk/podcasts/series/kermode
She talked about how it should stop being thought about as part of "getting old" and instead, a disease in it's own right. Cancer, she claims, was in the position of dementia a couple of decades ago. Why not treat dementia in the same way?
She built up this POV after discussing with lots of women either living/caring with/for someone with dementia, or in the early stages of it themselves.
I believe you have a more direct experience of this than me, so obviously I bow to that experience, but for people just setting out on a journey towards dementia's more overcast areas, a new way of thinking about it might be useful.