15-Min Full-Body Stretching Routine ----- If you have stiff hamstrings, locked up hips, and/or a rigid spine, and you’re looking for a fast, but effective, solution for full body flexibility, this video is for you. This 15-minute sequence of poses is very simple and pragmatic. It follows key Science of Stretching principles and uses deep, passive stretches to help change your soft tissues and improve your mobility. However, it is NOT easy and should be used as a post-exercise practice, not a war