At 67 and having been through open-heart surgery all ready - I am sure that I will die when my time comes. Doesn't bother me one bit.
I laugh everytime I read an article or see a documentary about how the Sun will go cold and the solar system will freeze over and the planets will all crash into each other in a few million years. Yeah, like homo sapiens will even exist then! Who cares. We'll all be in blackness by then - unconscious to what happens in the Universe - just as we were when the whole thing came together.
I've never understood why human beings want to live forever. Why?
OK - the first hundred years would be tolerable. Maybe even the second hundred. But living forever? What do you do that's new after 1000 years? 2000 years? Can you imagine spending two nights a week a the local Kingdom Hall at the corner of Heavenly Place and Paradise Road for the next 10,000 years.
What would you do after 100,000 years. One million? Remember, you are hoping for "Life Everlasting"!
No - I think that I will enjoy my lifetime, whatever it turns out to be. I'll probably fight dying early like everyone else. But when it comes, it comes. I'll live as long as my DNA continues to appear in some of my descendants. When all of them die - then I too will die completely. So be it.
In the meantime, I'm eating, drinking, and having a hell of a good time!