Public health protects and improves the health of individuals, families, communities, and populations, locally and globally.
Public health is personal.
Public health professionals focus on preventing disease and injury by promoting healthy lifestyles. They implement educational programs, develop policies, administer services, conduct research, and regulate health systems to achieve these goals.
Its reach is global.
The public health field confronts global health issues, such as improving access to health care, controlling infectious disease, and reducing environmental hazards, violence, substance abuse, and injury. It spans many disciplines and is regularly spotlighted in popular culture and media.
The impact is measurable.
In the past century, public health initiatives have improved lives worldwide, including increasing life expectancy by almost 30 years in the United States. The development and application of population-based prevention programs will continue improving health over the next decades.
Those in the public health field are helping to solve the world's most pressing health problems.