Editors' introduction

This chapter starts with the observation that obesity is highly prevalent among the urban poor in the United States (US), a situation that is quite opposite from that in developing countries where urban poverty is associated with undernutrition. Urban poverty in the US is associated with a cluster of nutrition-related health consequences and biological effects of traditional interest to human biologists. Using a microlevel, biocultural approach similar to that employed by Huss-Ashmore and Behrman in chapter 4, Johnston and Gordon-Larsen add a new dimension termed “communal participatory action research,” a special form of intervention. It combines traditional university missions: research, teaching and service, which in this instance is to the neighboring community. This approach removes the study community from the role of specimens or subjects, and through research collaboration returns education and knowledge. The community involved in the microlevel analysis and intervention are the teenage pupils of the Turner School which serves a poverty-stricken neighborhood in a Philadelphia ghetto. The proximity of an elite university and an impoverished ghetto highlights the extremely patchy nature of urban social geography and its biological consequences.