Anyone who's lost someone to cancer will say this that you have to struggle to try to remember the person before the diagnosis happened because they really do change - as anyone would change.
Bitterness is like cancer. It eats upon the host. But anger is like fire. It burns it all clean.
It seems that when you have cancer you are a brave battler against the disease but when you have Alzheimer's you are an old fart. That's how people see you. It makes you feel quite alone.
At my age I don't think anyone is untouched by cancer.