Feck,
It is good that you want to learn, but articles about Alzheimer's, Dementia, Lewy Body - call it what you will - do not convey the devastating heartache and pain sufferers and their families go through. My Mother lost the memories of her whole life, no recall of my father, her travels abroad or my sisters or myself. Then there were the horrendous hallucinations and the inability to recognize herself…
If you want to learn, read the posts here and on other Messageboards from victims and their Loved Ones.

Dave.