Hi, I'm currently living in Regina, Saskatchewan, Canada although I have lived many places and am originally from Calgary, Canada. I have knee pain when I go up or down stairs, when I get up out of chairs, when I cycle, when I try to dance pretty much when I do anything except walk. My knees don't bother me if I walk on a relatively flat surface. Both knees are bone on bone. I am 70 and when I was in my mid 40s I thought all I wanted was knee replacement on both knees but I changed my mind. I believe something better will come along like cartilage replacement or some kind of stem cell therapy. At any rate, something innovative and I am afraid if I have a knee replacement I would not be a candidate for anything like that. Also, I decided not to have replacements as the doctors were not reassuring about the range of motion I could expect after surgery. If my knees didn't hurt so much I would enjoy cycling more and would exercise more in general. I would also be able to dance again. I was a professional flamenco dancer for many years but finally had to quit because my knees hurt too much. While I can still do the movement parts of flamenco I cannot do the footwork at all. My life would be better in general if my knees were less painful.