“We’re trying to attack heart disease, cancer, stroke, and Alzheimer’s one disease at a time, as if somehow these diseases are all unrelated to each other,” says S. Jay Olshansky, who studies the demography of aging at the University of Illinois–Chicago, “when in fact the underlying risk factor for almost everything that goes wrong with us as we grow older, both in terms of diseases we experience, and of the frailty and disability associated with it, is related to the underlying biological process of aging.”
