Tui Na, which is a traditional Oriental touch therapy that was developed more than 2,000 years ago.Tuina involves stretching, kneading and pushing the muscles, while ZhiYa involves pressing and pinching acupressure points to relieve stress and pain. Each technique is based on therapeutic principles with relative effects such as stimulating the body to release more hormones, regulating blood flow or boosting energy or recovery. "Shou fa" or hand techniques are further categorized into sedating techniques or "yin" and stimulating techniques or "yang." The idea is to balance both yin and yang to achieve full health.