At 98 years old my great grandmother looked at me almost tearing up and told me she didn't know who I was. She then went on to tell me that she wasn't herself anymore, that she was going crazy, her body not responding correctly and that all she wanted to do was die. This really changed my perspective in that existing is not necessarily good, pleasant. I don't know if having optimal health she would had felt the same way, but at least now I know getting to be so old is not neccesarily a blessing as some people would have you believe.