Chapter 1- introduction and basic concepts in aging. Main focus of the book is optimal aging. Aging processes are plastic- how we age and the rate at which we age are balanced. Eg free radicals can accelerate deterioration, but antioxidants may decelerate it. Health psychology and behavioural medicine psychosocial factors can affect physical health provide clear documentation that. Psychosocial risk factors can be protective factors as well. All 3 studies are in consensus about ^ Cholesterol-lowering agents and viagra are among the most commonly prescribed meds in this country. One exception was neuronal slowing, which even the healthiest older men manifested. Study showed that older adults can enjoy good health. The recognition that optimal aging is possible led to longititudinal studies such as the. Normative aging study and the macarthur study of successful aging w/ the goal of understanding healthy aging required for understanding the aging process mechanisms of aging.