re: The age(s) between 75 and 85/90 are the worst.

My gramps was going pretty good until he got the pancreatic cancer diagnosis at 84. Couple months later he was gone. Considering the alternatives that doesn't seem too bad. Granny on the other hand had a lot of cognitive decline the last several years and lived with severe arthritic pain. Hurt her to even eat. She was gone within the end of the year after gramps.

Life's pretty scary.