The first Dr. Lerner -- Super doctor -- Illness hits home -- The second Dr. Lerner -- Forging my own path -- Treating the whole patient -- Family practitioner -- Growing disillusionment -- Slowing down -- Epilogue.

Perhaps nothing symbolizes the current polarized political climate in the United States more than the world of public health. Public health schools and health departments are full of “true believers,” people willing to crusade for any program designed to reduce morbidity and mortality. But in the “real world,” proven programs and strategies—such as gun-control measures, universal vaccination, and improved traffic safety—are routinely thwarted. Why do critics oppose efforts to improve the public's health? History can provide some answers.