I'm chiming in at 63!
Yeah getting older makes you take a closer look at death and sickness and all the things that come with getting older. I think about both sets of grandparents more and what they went through facing the grim reaper.
On a positive note: I think a lot about my childhood and see how first learned things and how my ideas have changed and matured with the passing of time and better understandings. Sorta a review and make sense of the whole experience thing going on with me.