Just lost my aunt to Alzheimer's this last week. +1 on the hard to take care of bit. They turn into toddlers, then animals, then nothing. It's heartbreaking.
I've lost my aunt and now losing my mother to it. It's a garbage diseases and such a burden on the loved ones, mental, physical and financial.
I'm so sorry you went through that.
I lost my grandma because of this. She was taken care of by my uncle and my father, and deep in my heart, part of me blames them for not doing their best. At the same time, I know they did way more than I ever could have done. It’s just so hard to take care of someone like that.