Tension headaches are caused by a number of things that myofascial release can deal with.  Old injuries, poor posture, working long hours in an incorrect position, even things like emotional and mental trauma that causes people to unconsciously take on protective and damage positions cause the fascia to become taut and unreceptive to free motion.  This in turn causes pulling and in the end headaches that may seem to come from nowhere and are difficult to cure.  Myofascial release unwinds the tension in the fascia the tension points where the pain is originating (usually in the neck and skull) and with this comes a dwindling of the pain and eventually the ending of the pain altogether.  The great thing about myofascial release is that since it deals with the root of the problem, after a few sessions, the headaches are gone for good.  Myofascial release works on all kinds of headaches: tension, migraines, and sinus headaches, as well as TMJ and cluster headaches because all of these headaches have the same cause at their root-tension in the fascia causing pulling and unnatural stretching, leading to pain.  If you are having difficulty with persistent headaches, then trying myofascial release could be the best thing for you.