The author traces the origin of the body-mind continuum in utero and on to the formation of a separate self. He starts with the principle that the mind is extended through the body rather than localized in the brain. He then follows the path of differentiation of the mind from bodily functions, as well as the differentiation of physiological learning from mental learning. Some somatic disturbances can be dated, in the sense that they could not occur at certain stages of development. This hypothesis is supported by observations relating to dating links to various conditions, i.e. on regurgitation, asthma and stuttering. The author also discusses the difference between non-integration and disintegration.