Man running is hard. I can do 30 minutes on the Eliptical and get my heart rate up to an average of 135 and not feel like I'm going to die. This morning I decided to do some running. One "lap" on the treadmill is a quarter mile. I walked one then ran one then walked one. The laps that I ran were brutal. I set the pace for those at 5.5(mph) It was the slowest I could set it where I was actually jogging. By the end of the second quarter mile I was definitely ready to quit. Phew, good thing that is over till next wednesday.