The American Physiological Society (APS) was founded in 1887 with 28 members. Of them, 21 were graduates of medical schools, but only 12 had studied in institutions that had a professor of physiology. Today, the APS has 10,500 members, most of whom hold doctoral degrees in medicine, physiology or other health professions. APS's mission then, as now, is to support research, education, and circulation of information in the physiological sciences.