my only issue or fear in aging (over 70) is that there will be a time were in each of my birthdays i will be a lot more closely to death :p Also another thing is the fear that i won't be able to do thing i can now and i don't mean partying and stuff, i may doing the same things i do now like walking or moving my arms but when i am old my arms will hurt and i will be tired with just 1/10 of the distance