A Brief History of Body Shape

Like the vast numbers of other organisms that roam, or have roamed, the earth, the modern human represents a finely honed tool—one forged through millennia as it struggled to survive and thrive in more or less unaccommodating environments. Displaying the battle scars and winning strategies of its brutal, but ultimately triumphant battle against the elements, our bodies hold vast amounts of encrypted information that describe our biological lineage. In addition to the countless mechanisms that have evolved to support our existence, however, the human body is somewhat unique in that it exhibits striking permanent physiological differences that identify and define the sexes. The biology that arises from, and the social meanings attributed to, these physical features penetrate deep into the heart of what it means to be human, as well as a man or a woman. Before delving into the biology of fat, we must first therefore consider the history of body shape. This chapter begins by discussing several explanations for why the modern human body might have evolved the shape it has, and why the body differs between the sexes. Building from this foundation, it examines how societal attitudes toward body shape are ascribed and their shift over time.