I see doris5000 suggests Yoga, for me it was Pilates that has helped. This time last year in my mid-late 40s I felt like a pensioner. Most joints, especially my left knee, were hurting and I was hobbling around the place. I’d given up running and was toying with giving up biking too.
I took a punt on a local Pilates class and within a month I was feeling human again. It’s fixed the general aches and pains, I feel I’m much more in control of my joints (if that makes sense) and it’s even fixed an old shoulder injury. It’s about a year since I started going (once a week) and it’s been the best thing I’ve done for general well-being. I’m loving the bike and have even started gently running again.
I suspect years of not bothering to stretch after exercise, or just focusing on the main muscles had left my joints in a knackered state – Pilates is a long way from being a high intensity form of exercise, but it seems to have reawakened all the muscles and ligaments controlling everything.
Def worth giving it a try.