Of the ten most common causes of death in industrialized countries, at least two-thirds are lifestyle-related (i.e. poor nutrition, physical inactivity, overweight/obesity, cigarette smoking, alcohol/drug abuse and the environment, among others). The rapidly expanding elder population will put further demands on health care systems already burdened by the elderly and the poor. However, increasing age need not be associated with expanding health care costs if people improve their lifestyles. Healthier lifestyles would significantly reduce the incidence of coronary heart disease,...