Human adaptability research into the beginning of the third millennium

Human adaptability, as a field of inquiry within human biology, became defi ned during the research activities of the International Biological Program (IBP) (1964-1974). During this period, research was focused on ecological, physiological, and genetic studies of human populations within the theoreti cal frameworks of adaptation and evolution. Other defining characteristics of the IBP human adaptability research were standardization of methods, mul tidisciplinary projects, international cooperation, and a concern with huma n health issues. Some observers suggest that this research contributed to t he ongoing transformation of physical anthropology and related fields from a largely descriptive to an analytical science. During the 25 years between the end of the IBP and the present, a number of research trends have conti nued: Several new multidisciplinary projects were initiated and completed; a subfield of demography within human biology has matured; nutrition, infan t and child growth, and health studies have proliferated; and molecular gen erics and DNA analysis have superseded the earlier population genetics. Int ernational programs today are geared toward more practical and applied stud ies with less emphasis on basic science. Continuation of human adapt abilit y research into the 21st century is likely to make contributions in 3 broad areas: population, environment, and health. Productive research is likely to contribute to these 3 areas in the following categories: reproduction, p sychosocial stress, life span approaches to health, effects of losses in bi odiversity on health, a human biology of poverty, emerging infectious disea ses, epidemiology of modernization, evolutionary medicine, and aging. The s uccess of much of this research in its contribution to knowledge will come from the integrated perspectives of a biobehavioral framework of inquiry.