Alexander, Yeah, but 'that's the best your gonna feel all day' as I recall a line from a film.
Sorry, but you are obviously younger than me. I like most of my friends have come to terms with the fact that in the shorter, rather than the longer term, we are going to fall off our twigs - no matter what. The only thing that concerns us, is not pegging out as that is inevitable - but the process of pegging out - pain etc.
What is worse though is looking forward to a 'controlled' lifestyle as you describe. Can't take a drink? Get stuffed as I told my doctor, can't have an ice cream - ditto, can't do this, can't do that, mustn't do this, mustn't do that - is it worth living? I am not in the least narcissistic, and I keep my less than beautous body charms to myself. I DO the things I enjoy, such as walking -thank you France for supplying the environment, I do NOT climb ladders, build houses, lift weights, work a bloody treadmill. I do NOT follow regimes, instructions and I do NOT read the tripe that makes an enemy of this food this week and a hero of it next.
In my lifetime I grew up with a wartime diet - ie always being hungry as young kids are. I remember potatos for example going from hero food to villains and back again, ditto with butter, margarine, even chocolate for crying out loud. Pasta a great NO-no, and so it goes on. I am largely vegetarian without being a fanatic about it, mainly because my wife is a great cook and slowly converted me - plus my love of all animals. But NOT because of regimes. Yes the first quack frightened the hell out of me, and for the first three months I was the most miserable and nasty git on this planet as I starved myself - under instructions.
Maybe he did the right thing ultimately, probably did, but he and I suggest like a few here, do not understand the ageing process. It is something you have to go through and be part of to really understand it. Mostly it is the acceptance of age, increasing weakness (is that right?), accepting that it isn't going to improve, and making the best of what you have left, and not trying to kid yourself about immortality.
Interesting point about stooping. I am not that tall, but seem to find myself talking to people who are shorter than me for the most part, that combined with deafness makes me stoop.
Anyway I have every intention of growing old(er) disgracefully, and hopefully popping off in an afternoon siesta. Well, we can all hope can't we?