I finally ran today. I probably should have run yesterday too, but that's the way it goes sometimes. I felt good today, running only about 3 miles, but I thought it might be best to start kind of slowly my first day back after a week of being under the weather. I wore the heart rate monitor and felt like I could keep a reasonable pace and keep to 145 bpm or less. Without the heart rate monitor, I get to feeling good and I start to pick up the pace and really start rolling. I think that pace, the rolling pace, is something besides aerobic easy pace, so it's good to have the HRM.