Development Through the Lifespan, 7/e - Pearson

genetic makeup, lifestyle, living environment, and historical period—can accelerate or slow age-related declines (Arking, 2006). As a result, the physical changes of the adult years are, indeed, multidimensional and multidirectional (see page 8 in Chapter 1). In the following sections, we examine the process of biologi-cal aging. ................
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