Fascia is a thin tissue that covers all the organs of the body. This tissue covers every muscle and every fiber within each muscle. All muscle stretching, then, is actually stretching of the fascia and the muscle, the myofascial unit. When muscle fibers are injured, the fibers and the fascia which surrounds it become short and tight. This uneven stress can be transmitted through the fascia to other parts of the body, causing pain and a variety of other symptoms in areas you often wouldn't expect. Myofascial Release treats these symptoms by releasing the uneven tightness in injured fascia.