Everyone in my family gets arthritis so I'm not looking forward to that. My aunt had five hip replacements in her lifetime and although I know that artificial joints are better manufactured than they used to be I still don't want my hip joints cutting out, I'm rather attached to them.
I do get a small amount of joint pain in my wrists and fingers but I'm never sure if it's RSI from computer use at work or arthritis. My mother was diagnosed with arthritis in her spine in her forties and told she was put going to end up in a wheelchair. She decided she didn't like that prognosis and drastically changed her diet. I have followed her ideas but in addition to a healthy diet and supplements I've also cut out red meat which seems to be contraindicated according to the research.
So far so good, fingers crossed, or not if a bit sore today. My cousin has some quite badly deformed fingers. My grandmother did too. What I have discovered is nobody is sure of the cause of arthritis. It's supposed to be wear and tear on the joints but people in their twenties can get it. The research is very confusing.