I didn't like the idea of death when I was younger and healthier. Now, I accept it and sometimes even look forward to it. Life is a struggle and it gets harder to struggle with each passing year.
If we invented something that could turn back the clock and make me young and vigorous again... well, I don't know. I wrote about that recently (Would You Choose to Reverse Aging? in my Health List) and I don't know how I'd feel about that.
Today I'm tired because my wife had nightmares that kept me awake and because something I ate yesterday upset my stomach. I'm grumpy right now and if I were to suddenly fall to the floor, I might think "Good. Maybe it's over". But tomorrow I could be rested and recovered and be looking forward to getting our bathroom redone, new carpet in the living room, and touching up some wall paint. Not that I'm doing any of that myself; I'll just be enjoying watching ;)