Abstract

Individuals can often take steps to preserve or improve their own health. They can eat appropriate quantities of healthy foods, exercise, and refrain from smoking. They can obtain preventive care and adhere to their physicians’ advice about how best to manage their health. But they often fail to take these steps.A widespread failure to adopt healthy behaviors can significantly erode public health while increasing health care costs. Obesity, for example, increases the risk of heart disease, stroke, liver disease, and certain cancers. By one estimate, it is responsible for almost 10 percent of medical spending in the United States, or about $147 billion per year. Smoking increases the risk of heart disease, stroke, lung disease, and cancer; it accounts for nearly 20 percent of deaths each year in the United States and about $96 billion in health care expenditures.