I am 22, and a few months ago, for the first time in my life, i experienced tense back muscles that hurt quite a bit, when i tried to move awkwardly as usual.
Other than that i am good. I feel like i am very very very old though. Like centuries old. I have lived in so many different places, in so many continents that every phase of my life seems like a lifetime. And at 22, i look at some guys who are 44 etc, around twice my age and i am in awe. Because that i such a long time. I don't know what i would do if i live to be twice the age i already am. I have lived so much already. I met some 60 year old that say they stayed at their jobs for 30 years, 35 years etc. Hell i can't hold a job for more than a year, even if i were having a fantastic time! I dunno.
And then some people are in thier 80s. That is just creepy right there. They should be dieing for death.