This post contains affiliate links. Read my full disclosure here. I hate stretching. I always have. As a result my muscles and joints are very angry. I can confidently say I probably have the tightest hamstrings you have every seen. If you work out regularly, or even spend hours sitting at a desk, you've probably experienced tight muscles, sore legs or stiffness that is chronic and painful. I still don't love to stretch, but I have tried hard to make it part of my worko