Acupuncture treatment is only one of the many treatments used in the Traditional Chinese Medicine (TCM) approach to remedying diseases and disorders of the body. TCM has been used for thousands of years, successfully treating injuries and illness. Practitioners of TCM view the body as being in a delicate balance between two opposing and inseparable forces: Yin and Yang. Yin represents a cold, slow, or passive principle, while Yang represents a hot, excited, or active principle. TCM likens the human body to a highly complex electrical circuit board. Like an electrical circuit, it must be kept in good working order if it is to function effectively. If a circuit breaks down, it will result in illness or injury. Acupuncture is a TCM method of repairing a “broken circuit,” restoring and maintaining the body’s natural "balance state." Disease is a result of an internal imbalance of yin and yang, leading to a blockage in the flow of energy called qi (pronounced "chee," meaning vital energy) along the pathways known as meridians. Acupuncture uses hair-thin needles inserted into the skin to release the qi, resuming the flow of energy and allowing the body to heal naturally.