Externalist Medicine and Externalist Biology

This paper assesses the prospects for an externalist perspective for somatic medicine—the view that health and disease of the body might sometimes be constitutively dependent on factors external to the organism. After briefly reviewing the grounds for psychiatric externalism, I argue that similar considerations are already implicit in somatic medical practice, particularly in immunology, public/population health, and occupational therapy. I then argue that the interactionist and population-minded externalist approach to biomedicine represents an important practical application of more general trends in biological theory; namely, the growing rejection of individualistic and reductionistic thinking.