A month of running at least 1 mile every day should be interesting. Chilly this morning, but headed out after 8:30. I could feel my back every step of the way. Tried to concentrate on short quick strides. Went 2.57 miles in exactly 25 minutes with an average HR of 132. My heart rate steadily went up over the course of the whole run. Nice increase in my steps/minute too compared to the runs last week.