It was a tough run but there were several differences between this time and the last time I ran. I was running on a treadmill in a hot & stuffy garage. I sort of liked running on the treadmill but the lack of moving air was harsh. I'm taking tomorrow off but will run again the following day with a fan. We shall see if that makes it a little more enjoyable. I did like the fact that the treadmill kept me at a constant rate and I couldn't slack off like I have a tendency to do when I'm running outside. I also liked not having to deal with the unknowns you get outside. I didn't have to outrun any dogs, bugs, or crazy school kids. I can also run anytime of the day. I'm really stoked about that. I'm also really glad I'm active again. I was dripping wet when I finished but it felt great to get moving!!