Okay, I was advised by my rehumatologist a number of years ago, if you're past 25, you've probably got some arthritis. I have to take breaks (a lot of them) when I cut strips for the log cabin quilts I've done. I also have some fairly serious spinal issues (had two lumbar spine surgeries) and I'll be 73 soon -- as another poster pointed out, I do one task, then take a break and/or do another task for a while. There are a lot of things I used to do in my 20's that I sure don't do anymore, like lugging 50 lb. bags of fertilizer for my rose garden -- guess what, I decided that the price of having the rose garden was just too high!