No Cool Down Required Thank You

So one of things that surprised me about this program so far, and I think I have mentioned this before, is the seemingly short cool down period provided with the workouts. In certain cases the cool down and stretching following the workouts is basically non existent. I assumed that this was due to an attempt to keep the workouts under a certain length, an hour probably, but after reading this article from the NY Times maybe this was by design. That being said I plan to continue to do extra stretching following the workouts since it seems that it helps me to not get sore low back muscles which for me can be an issue, although it appears I am probably beyond that now.