Your parents are about to suffer from all of these problems and more, so it's good to study up on them before they happen so you can minimize the pain when they start self destructing. No amount of preparation can prepare you for it, but knowing what to expect helps you guide it toward ideal outcomes.
Anger and Aggression in Alzheimers:
https://www.youtube.com/watch?v=KdIHC4Ah7VUElderly boomer narcissists do not age well:
https://www.youtube.com/watch?v=XUrSELG7ZZwDementia and baby boomers:
https://www.youtube.com/watch?v=XVinKNUDlQcParkinsons and boomers:
https://www.youtube.com/watch?v=nAbSohEW6QoSociopathic Dark Triad aver age 50, meets loss of long term memory:
https://www.youtube.com/watch?v=GLHGQiRnpdEmuch much more. It's a royal shit show and you're the protaganist who has to be the bad guy to either leave them alone to rot in their own shit hurling abuse at everyone, or be the bad guy and put them in a home for the nearly dead and dying.
