I am so sorry for your losses Teacher Terry. It's not easy loosing those we have known and loved for so long.
My experience is that my father was diagnosed with an inoperable astrocytoma (brain tumor) at age 50 in 1979. After performing a biopsy, the doctor gave him 6 months to a year to live. I had just graduated high school and to this day, my father's brain tumor was the most shocking and traumatizing event in my life. I suddenly wished I had gotten to know my father better. He lived 5 years with radiation treatment and a couple doses of chemo therapy and paletive care. Mom and I cared for him at home and he just slowly got worse. It was horrible watching him go through this slow agonizing death. His last month of life was in a nursing home. He was scared, alone, paralyzed, in pain and knew he was dying. Words can't describe how bad I felt for him. It was tough visiting him that last month.
I recently discovered that almost no progress has been made medically for the care and prevention of brain tumors over the last 40 years.
My mother did not fare much better, other than living to be quite a bit older. She suffered for 5 years with renal failure, with dialysis sessions 3 times a week for 6 hours each and a had the host of other ailments that accompany renal failure. She was in pain all the time, had no energy, and no hope of getting better.
After seeing what my parents went through, I do not have a positive outlook on getting old.