I am 41 and my body has changed as I have aged.
I don't have the same body that I had at 21 but I am also not the same woman that I was at 21.
I loved and embraced my body then and I do now. I think it is unrealistic and maybe even unhealthy to expect your body to remain frozen in time as your mind, your heart and your spirit grow and mature.
I try to remain as healthy as I can and I have been blessed to live 41years and the changes I see in my body remind me of all the joys that I have experienced in my life that I wouldn't trade for anything.