Oriental medicine is a traditional, evolving, holistic healthcare system that integrates the art and science of diagnosing, treating, prescribing for, curing, and preventing physical and mental disease, relieving pain, and preserving and improving physical, mental, emotional, spiritual and societal health and the healthy ecology of the planet through the application of an understanding of balance, harmony, form, function, yin, yang, qi, metaphysics, the natural sciences and biomedicine.