I'm as limber and as ache free as I was forty years ago.
I'm fortunate too, into my 55th year, I'm hardly ever ill and don't feel any adverse affects from cycling 150+ miles a week for work, then longer weekend rides.
I don't really do any other exercise - apart from longish walks, but came across these that may help
I'll have what you are having Mick.
Past 45 you have to work harder to stand still as the testosterone production levels fall.So, you were geriatric in your teens too
My question's semi-serious but largely tongue-in-cheek. Clearly, the body does clap out as you get older - that's to be expected - but I just wondered how others perceived this and dealt with it.