Following your suggestion, I tried this and yes, it is unnerving.
I'm 56 and if I am lucky will live until I am 85. That's about 30 years and 20 of those might be with a good quality of life. The last 10, questionable. My father lived a decent quality of life until 86 and passed at 88. It is what it is. I wouldn't trade my life now, with being retired, no bills, the opportunity to travel the world, with where I was at 20 years ago. I wouldn't want to go through that again. Ask me when I am 80 I will probably have a different answer