The process of having, maintaining, or returning both a minimal balance and appropriate operating functions of all aspects of the body, mind, and spirit. Many people seek to optimize this balance and the functions rather than keep them at their basic appropriate levels.

The most common system for doing this is known as allopathic medicine, the techniques used by licensed MDs. Derived from medieval forms of healing, this form of medicine deals with disease in one of three primary ways: poisoning, cutting, and burning. For emergency medicine and dealing with broken parts of the body, there is currently nothing that excels this form of medicine. However, it is not as successful in dealing with chronic problems or preventing reoccurrences of problems. As a result, many millions of people use alternative or complementary forms of healing. These systems of healing are quite varied and include acupuncture and acupressure, herbology, Reiki, hypnotherapy, chiropractic, naturopathy, absent healing, color therapy, hatha yoga, Western exercise regimes, vitamin therapy, fasting, chakra balancing, and many more.