Since I am older than just about anyone else I know these days (older cousins excluded), let me pass on a few things.
1) Your night vision goes straight to hell. I used to get very exasperated driving behind older people at night as they poked along. Payback is a bitch, guys. When it first started to happen to me, I kept wiping my eyes because it seemed like I was looking through dark gauze. Nah, just aging eyes. It's actually easier to drive in the country than in the city. Well, as long as no one is tailgating me. In the city the lights can be very distracting. In the country it's just you and your headlights. And oncoming traffic. And the guy behind you. But it's still easier than the city. Of course in bad weather it's all bad. You have been
2) Your joints. Kiss them good-bye. Now admittedly mine are much worse than yours are most likely going to be thanks to lupus and whatnot, but even before that hit it was Creak-o-rama. As it was with my friends. It was pretty funny when we'd get together and the joint would be popping. So to speak.
3) You lose the padding on your feet. Really. Probably later than I did, again thanks to autoimmune diseases, but it does happen. For the past two years I was experiencing a lot of pain when I went barefoot and incredible pain even in socks if I stepped on something innocuous like a cord or something. I felt like I was walking on the bones of my feet. And it turns out that I was! Validation is good even when it's weird. I had no idea that it was also going to be a part of the aging process. Probably not until the 70s for the rest of you.
4) You still get freaking hot flashes. Females, anyway. Now part of that, again, is lupus doing its demonic thing with my body's ability to regulate my body temp, but even before that - yup, hot flashes. Not as frequent or as intense as during perimenopause, but they're still hanging on.
5) Skin. It's actually kind of fascinating how the elasticity and the texture of your skin changes over time. I don't think it's a bad thing at all, but it's a definite change. I honestly love how my hands look now with all of the creases and lines: It's like they're made from fine crepe. I don't know how to say this tactfully because I don't want it to sound mean, but I'm truly disappointed that I won't be around to see all of your tattoos in another 30 or 40 years. I wonder how they'll transform?
6) This last is mostly for me, but maybe some of you have had surgical work done. I had major surgery done on my jaw and mouth back in 1989. I have pins in my jaw and a metal plate in my chin; my jaw was moved back, the top of my palate was sliced and repositioned. It was a big deal. It was also 24 years ago. My bones have shrunk; the hardware is old. My jaw pretty much has a life of its own now. That thought that aging was going to affect the surgical changes decades down the road was never brought up. I'm not sure it was even considered.
7) Your aging body changes. You shrink. I didn't want to believe it, either! I remember talking with cousin Barbara about four years ago, laughing together as she told me how outraged she was to find out that she shrunk 1 1/2 inches. She yelled at her doctor :) "That can't be right! I'm very active. I eat right. I take care of my health!" Heh. And now it's my turn. I'm an inch shorter than I was a few years ago. Of all the changes that come with aging, this is the one that really bites me. Crazy, but there it is.
And now, since our power came back just a while ago (Yes! Yes! Yes!) I'm going to have something not microwaved to eat, and then I'm going to settle in for Game of Thrones. Life is good.