Nerves function correctly only when they are able to move freely within their surroundings. A harmonious relationship between different systems of the body is necessary for optimal health. When nerves or nervous system organs and their support tissue become 'fixed' in one location, the body is forced to compensate elsewhere. This disharmony creates restriction, abnormal points of tension, and chronic irritation that, over time, can cause functional and structural problems: muscular, skeletal, vascular, nervous, urinary, respiratory, and digestive.