I had some back problems 8 years ago, but discovered that I could comfortably ride a bike, so started bike commuting to/from work - 12 km each way. Despite winter in Calgary, I ride my bike every day. I had back surgery 4 years ago and my back is much better but have continued to bike commute. It is the best part of my working day. I have to agree that cycling up hills was much easier 40 years and 40 lbs. ago. Some of us just are built for lycra.....

Bill