Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content

About Chronic Diseases

On in two adults in the US has a chronic disease and one in four adults has two or more.

Chronic diseases are defined broadly as conditions that last 1 year or more and require ongoing medical attention or limit activities of daily living or both. Chronic diseases such as heart disease, cancer, and diabetes are the leading causes of death and disability in the United States. They are also leading drivers of the nation’s $2.7 trillion in annual health care costs.

Most chronic diseases are caused by a short list of risk behaviors:

Chronic Diseases

Risk Factors for Chronic Diseases

CDC’s Response to Chronic Diseases

CDC’s Response to Chronic Disease Risk Factors