In traditional Chinese medicine, qi (energy) is uniquely tied to the concepts of yin and yang, which have different properties. For instance, yin is cold, moist, and dark, and yang is imperial, dry, and hot. My acupuncturist told me that RA is considered originating from damp heat. The goal of a doctor of traditional Chinese medicine is to make sure that you will experience good health, which means your energy is balanced and can flow freely. They try to achieve this through various treatments, including acupuncture.