Acupuncture involves the insertion of extremely thin needles through your skin at strategic points on your body. A key component of Traditional Chinese medicine, acupuncture is most commonly used to treat pain. Traditional Chinese medicine explains acupuncture as a technique for balancing the flow of energy or life force and believed to flow through pathways (meridians) in your body. By inserting needles into specific points along these meridians, acupuncture practitioners believe that your energy flow will re-balance. In contrast, many Western practitioners view the acupuncture points as places to stimulate nerves, muscles and connective tissue. This stimulation appears to boost the activity of your body's natural painkillers and increase blood flow.