In that a number of studies link unhealthy behaviors to accelerated declines in thinking and memory skills, these also can readily be remedied. Researchers from the Hopital Paul Brousse (France) studied 5,123 men and women civil service office workers in London enrolled in the Whitehall II study. Subjects were surveyed for health behaviors (smoking, dietary habits, daily activity) at 44 years of age, 56 years, and 61 years...