I think people have to accept that they WILL die eventually. Death comes to us all and no-one will live for ever. Even if one could prolong life by five or ten years, death will be there at the end.
It's difficult trying not to fear it, and the best way is just to enjoy each day as best one can. There are always small pleasures to be had, even if one has health problems or other troubles. Seeking these tiny but reliable pleasures and being thankful for them is one of the secrets of having a 'good' life.