About to turn 60 and probably less injuries than some of you guys.
I see a chiro regularly and I do a regime of exercises to keep aches at bay.
If I can get out at least once a week , preferably more I handle things ok. I get some aches but generally a painkiller the night after and doing my stretches keeps things ok.
I try to keep fit with bushwalking , cycling and kayaking.
I find once I stop sailing for a while ( injury etc) all the little aches and pains start to surface and I can get to the stage where my old ankle break plays up and I'm worried about standing or walking..

Chiro says the more windsurfing the better and I certainly find it so..
I've gone to more user friendly Windtechs for the chop and I'm having a ball trying to get as good as I can and getting back into B &J. The more sailing I get the younger I feel..