Diagnosing Imbalances How does one know if their imbalance is toward the sympathetic or parasympathetic sides? Knowing the duties of each, the symptoms one is presented with is the first clue. There also some simple challenge tests that can reveal one’s ANS status. For example, the color red stimulates the sympathetic system. If one looks through a red film and it weakens their nervous system as exhibited by muscle testing, chances are good they are on sympathetic overload. Conversely, the color blue stimulates the parasympathetic system. If weakness occurs while looking through a blue film, they are dominant on the parasympathetic side. Another simple challenge test 11 is to have the person take a deep breath in and hold it and monitor for reflexive changes, which would display as a postural shift, or again a muscle test could be done. Once this imbalance is revealed, treatments become more obvious and can be tailored that would inhibit the dominate side and excite the weaker side. There are degrees of severity of imbalances. Questionnaires could also be utilized. Years ago Dr. William Kelley, who did much of the pioneering work on ANS imbalances, developed extensive questionnaires. He identified ten different states of imbalance.