I can understand what you have said. When I purchased my watch, I began to become a maniac, always pushing myself. If I cannot walk a mile in around 15 minutes, I was not doing good enough. If I cannot average in the 140s heart rate on a walk, I feel I need to do better next time. Also I would like to see my heart rate above 160 for at least a brief amount of time. As my body is becoming conditioned to exersize, the above is becoming more difficult to do. This is why I am happy I found that long hill. I want to be able to walk very fast up that hill one of these days. At 59, I am getting old. What I find interesting is that online I found this 70 year old who not walks but runs 15 to 20 miles a week. Probably ten minute miles. Amazing.