One of the best things about rest week is the requirement to do X Stretch. For those who choose to take Sunday (or day 7 whenever that is) off instead of doing X Stretch this will open your eyes to a new kind of workout. It is kind of like Yoga would be if it was really easy! Personally I choose to do X Stretch when I can but having it as part of the regular schedule in the middle of the week is a real refresher. I have to admit that although I am not the most flexible guy in the world I do enjoy X Stretch now. Working on my tendons, ligaments and fascia goes a long way towards my overall comfort and health on a daily basis. In fact, I noticed the other day that my back hasn’t cracked since I started P90X, a certain sign that the compression of my spine is far less than it was previously and that is always a good thing.