What’s the Precise Definition of ‘Public Health’, Anyway?

If you’re interested in a career in the medical industry, becoming a nurse or doctor are not your only options. Public health is one field that is popular for students interested in healthcare, but if you aren’t currently working in this field, you may not know what public health even means.

Public health has two main goals:

  • Preventing health problems
  • Keeping the overall population healthy with prolonged life

In short, the field of public health isn’t about curing disease or treating patients. It is about finding ways to ensure that health problems never happen in the first place. Public health workers are employed in a variety of fields to improve the quality of life for the general population.

Public health is deeply rooted in government programs, and in the United States, this ranges from positions in local health agencies to working as the Surgeon General of the United States Public Health Service. Some of the tasks involved with public health include the following:

  • Developing vaccinations
  • Preventing the spread of infectious disease
  • Preventing food and water contamination
  • Educating the general public about health concerns
  • Controlling the population through sex education and contraceptive distribution
  • Providing government programs to those who cannot afford health insurance
  • Encouraging healthy eating and exercising habits
  • Passing safety laws
  • Planning response tactics for natural disaster relief
  • Encouraging children not to start smoking
  • Building better healthcare facilities
  • Teaching expecting parents about infant care
  • Studying environmental pollutants’ impacts on health

This is not be far an exhaustive list, and there is, of course, crossover between public health and many other fields. For example, public health workers can also be educators, teaching driver’s safety classes or physical education classes at high schools. Public health workers can also be veterinarians, studying zoonotic disease, which are medical conditions that can be passed from animals to humans, or can also be lobbyists in Washington, D.C., working to pass anti-smoking or food safety laws. The field of public health is very broad. Over time, work in public health has ensured that, on average, human beings live longer, healthier lives. Developing countries are still in need of thousands of public health workers to play “catch up” with countries like the United States and Great Britain.

If you want to work in the field of public health, getting your masters of public health is the best way to qualify for top positions. From there, you can also go on to get a doctorate degree in this field, though these programs are relatively new, and most people find that a master’s degree in public health is the best choice in terms of which degree to get. You can specialize in any number of areas when you get your master’s degree in order to enter the field of public health in an area that works for you.

Top Online MPH - Master in Public Health Degrees

Public health is the science of preventing disease and promoting health at the population level. Since the late 1970s, public health degrees (specifically the MPH) have evolved from a second degree for doctors and other medical professionals to a primary degree in its own right, with six core disciplines: behavioral science, biostatistics, environmental science, epidemiology, health education/promotion, and health services administration. These disciplines of public health are taught online by the schools listed below.


Liverpool University
Master of Public Health
MPH - Epidemiology
MPH - Intl Public Health
MPH - Health Systems Mgmt
Liverpool University: The University of Liverpool MPH programs feature three programs, including epidemiology, health systems management, and international public health. The university features a modular system that allows for students the flexibility of obtaining credits at partner institutions and applying them to the Liverpool program.
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Walden University
Master of Public Health
Walden University: Walden University's Master of Public Health degree program is designed to fill the increasing need for health professionals that are knowledgeable on the development of healthy individuals, organizations, and communities. The program provides a core education in the public health field, uses a real-world teaching methodology, has industry leading professors, and a practical fieldwork practicum.
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Benedictine University
Master of Public Health
MPH - Disaster Mgmt
MPH - Health Education
MPH - Health Mgmt & Policy
MPH/MBA Dual Degree
Benedictine University: The second-largest Master of Public Health program in the state of Illinois, Benedictine University's MPH program features a core discipline of public health with a focus on the needs of today's healthcare industry. Specializations are offered in disaster management, health education, health management, and public health business administration. Courses feature a conceptual, factual, and skill base. Students are given the opportunity to apply their knowledge and skills in a professional setting.
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Kaplan University
Accelerated BS to MPH
MPH in Epidemiology
MPH in Health Education
MPH in Program Development
Kaplan University: The Kaplan University Master of Public Health degree program prepares students for health-care careers in governmental, nonprofit, and private organizations. The convenient, online program teaches students how to analyze and apply scientific research, prepare public health policies, develop health education programs, and review the impact of occupational and environmental factors. Kaplan offers various specializations within their MPH program, including epidemiology, health program development, and health education and promotion
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Capella University
Master of Public Health (MPH)
MPH - Health Mgmt & Policy
MPH - Social & Behavioral Sci
Capella University: The Master of Public Health program at Capella University prepares graduates for careers in public health management, social welfare, or research. Emphases within Capella's MPH program include health policy and social science. The curriculum explores the behavioral, psychological, and social factors that contribute to the health of populations. Courses include Principles of Biostatistics, International Public Health, and Environmental Health Concepts in Public Health.
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American Military University
Master of Public Health
American Military University: The Master of Public Health online degree program conferred by American Military University prepares students for careers in public health service and policy management with courses in healthcare business administration, healthcare law, and healthcare policy.
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A.T. Still University of Health Sciences
Master of Public Health
MPH - Dental Health
MPA - Health Administration
A.T. Still University of Health Sciences: The A.T. Still University of Health Sciences Master in Public Health Dental concentration is designed for dental professionals curious about dental public health. Dentists, dental hygienists, dental assistants, and other dental industry professionals are eligible to apply. Graduates work in community health centers, institutes of higher education, non-profit organizations, and local, state, and federal government. Related degrees include a general MPH and an MPA in health administration.
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Philadelphia University
MS - Disaster Medicine
Philadelphia University: The Master of Science in Disaster Medicine and Management at Philadelphia University is focused on the study of terrorism, weapons of mass destruction, hazardous materials, natural disasters, psychological effects of disasters, stress intervention, and disaster research. The program is a partnership between Philadelphia University and the Department of Emergency Medicine at the Albert Einstein Health Network.
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New York Medical College
MPH - Policy Management
New York Medical College: The New York Medical College Institute of Public Health offers a 45-credit-hour MPH degree in health policy management that will prepare its graduate students for a variety of healthcare careers. Graduates of this program will have thorough knowledge of the different business planning and policy enacting factors of public health.
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