What concept refers to the belief in the body's innate ability to heal itself?

The concept that refers to the belief in the body's innate ability to heal itself is Vitalism. Vitalism posits that living organisms possess a life force or vital energy that governs their physiological functions and healing processes. In the context of chiropractic philosophy, this idea is fundamental, as it emphasizes the role of the body's innate intelligence in maintaining health and facilitating recovery from ailments without external interference.

Reductionism, on the other hand, focuses on breaking down complex systems into their individual parts, often overlooking the holistic perspective of the organism's ability to heal itself. Mechanism refers to the understanding of biological processes in purely physical and chemical terms, often dismissing the role of vital forces. Functionalism, while it recognizes the importance of the functions of different systems, does not inherently incorporate the idea of an innate healing ability as central to its philosophy. Thus, Vitalism is the most accurate concept that aligns with the belief in the body's natural healing powers.