The relaxation response is a physiological state that is the opposite of the stress response. Introduced by Dr. Herbert Benson in the 1970s, it involves a set of integrated physiological changes that lead to a state of deep rest. This state can be achieved through various techniques such as meditation, deep breathing, and progressive muscle relaxation. In the context of epidemiology, the relaxation response is significant as it influences both the prevalence and incidence of various health conditions.