Which perspective emphasizes that chronic disease risk accumulates over the life course?

• A. Lifecourse perspective
• B. Infectious disease model
• C. Biomedical model
• D. Urbanization hypothesis

Answer: (A)

The lifecourse perspective holds that chronic disease risk builds up across a person’s life, with exposures, experiences, and social conditions at different stages accumulating to shape later health. Early-life conditions like nutrition, stress, and socioeconomic status can set physiological trajectories, and later life events interact with those early influences, making the overall risk a product of long-term processes rather than a single cause. This view emphasizes timing and accumulation, showing how repeated or prolonged exposures over years contribute to diseases such as heart disease, diabetes, and obesity.

Infectious disease models focus on pathogens and acute infections as primary drivers, not long-term accumulation of risk across the lifespan. The biomedical model tends to look at biological mechanisms at a given moment, without integrating how life history alters risk over time. The urbanization hypothesis links risk to living in cities and related lifestyle or environmental factors, but it doesn’t inherently address the cumulative, time-accumulated nature of risk across the life course.