Public health is a field of study and practice that promotes health, prevents disease and disability, and empowers people to manage their own health. Every scientific discovery, awareness campaign and new policy has the potential to improve the lives of millions around the world. The work of public health professionals is to ensure these programs are scalable, effective and sustainable.
Public Health reaches into all aspects of society, encompassing everything from community-based prevention and education programs, to the design and operation of healthcare systems, environmental protection, food and water safety and security, and disaster preparedness and response. The vast majority of public health services are delivered by government agencies at the local, state and federal level. These agencies often have shared responsibilities and goals, but the role of each at any given time can vary widely.
The Constitution grants certain powers to the federal government, including those related to public health. However, the bulk of public health responsibilities and funding remain at the state and local levels. This can create a patchwork of public health governance across the country, particularly during outbreaks and pandemics.
The core skills that are important to many roles in public health include communication, problem-solving and leadership. To effectively serve diverse communities, it is also important to understand cultural differences. All of these competencies can be developed through experience in the field, such as working in a health clinic or on a wellness challenge program. Obtaining an academic degree, such as a Master of Public Health (MPH) or Doctor of Philosophy (PhD) in a subspecialty of public health, can also be helpful to advancement.
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