Functional medicine approaches the disorders listed below from a perspective that's different from conventional medicine. Recognizing the early changes in health, identifying the underlying causes, and intervening early in the process can prevent the progression to more serious illness. Even more encouraging is the fact that these treatments are primarily diet and lifestyle changes. By removing the factors that contribute to illness and providing some unmet needs, this approach supports our natural impulse toward healing. In functional medicine it is the patient, not the disease, that is the target of treatment.