Acupuncture, which involves the insertion of tiny needles into specific locations on the skin to trigger the body's nervous system response, has been used for the treatment of numerous conditions for thousands of years. As a result of the treatment, the brain releases endorphins and natural painkillers to alleviate discomfort in the area. These needles also increase blood flow to the treatment area, while relaxing tense muscles. Some patients find relief after only one visit, but maximum benefit from this therapy sometimes requires continued treatment. Acupuncture has been the subject of several clinical studies and has shown statistically significant results for pain relief and muscle relaxation. In fact, studies have determined more than sixty percent of patients with sciatic nerve pain experienced symptom relief following acupuncture treatment.