Fascia is a specialized system of the body that has an appearance similar to a spider's web or a sweater. Fascia is very densely woven, covering and interpenetrating every muscle, bone, nerve, artery and vein, as well as, all of our internal organs including the heart, lungs, brain and spinal cord. The most interesting aspect of the fascial system is that it is not just a system of separate coverings. It is actually one continuous structure that exists from head to toe without interruption. In this way you can begin to see that each part of the entire body is connected to every other part by the fascia, like the yarn in a sweater.
Fascia plays an important role in the support and function of our bodies, since it surrounds and attaches to all structures. In the normal healthy state, the fascia is relaxed and wavy in configuration. It has the ability to stretch and move without restriction. When one experiences physical trauma, emotional trauma, scarring, or inflammation, however, the fascia loses its pliability. It becomes tight, restricted, and a source of tension to the rest of the body. Trauma, such as a fall, car accident, whiplash, surgery or just habitual poor posture and repetitive stress injuries has cumulative effects on the body. The changes trauma causes in the fascial system influences comfort and function of our body. Fascial restrictions can exert excessive pressure causing all kinds of symptoms producing pain, headaches or restriction of motion. Fascial restrictions affect our flexibility and stability, and are a determining factor in our ability to withstand stress and perform daily activities.
Reprinted in part from https://myofascialrelease.com/