Does the Body Forget? Adult Health, Life Course Dynamics, and Social Change

Abstract

Despite the growing application of a life course framework to understand the origins of adult health, research in this area faces important challenges that warrant consideration. Three challenges are considered here. First, how should life course researchers conceptually define health? We discuss the usefulness of a population health perspective where life course exposures give rise to a “portfolio” of health outcomes. Second, we argue that life course frameworks would be enriched by being more biologically informed and illustrate how life course exposures influence health through developmental and aging processes. Finally, we argue that life course research on adult health must attend more explicitly to the historical context to better understand the dynamics of life course influences on adult health. Dramatic changes have occurred across current birth cohorts represented in the adult population in their prenatal, childhood and adult exposures, yet these changes are rarely central in life course studies of health.