Public health is protection and improvement of people’s health and their communities. It deals with an entire population especially when the state involves itself in monitoring, regulation, and promotion.

Overall, public health specializes in protecting the well-being of entire populations. The populations can be small local neighborhoods, a whole country or a region in the world such as a continent.
Its success depends on the promotion of healthy lifestyles, prevent injury, researching on diseases and detecting diseases to prevent as well as respond to infectious disease.

Public health professionals make an effort of preventing occurrence or recurrence of health problems. Unlike doctors and nurses whose primary focus is to treat individuals with sickness or injury, public health professionals use these steps to protect communities:

Implementing educational programs such as informing the public about health risks of tobacco and alcohol
Recommending policies to authorities on how to prevent infections
Administer preventive and health improvement services
Conduct research to determine vulnerability to poor health for some people than others
Tack disease outbreaks
Develop nutritional programs to enable children access to healthy foods.
Lobby for laws that promote wellness such as promotion of smoke-free environment
The Public health workers work towards limiting health disparities. A large part of their work involves promoting of healthcare accessibility, quality and equity. The purpose is to ensure that the condition in which people love are healthy.

Public health is an exciting area as it has many options when choosing whether to complete a concentration or specialization to follow up an area of interest in the career path. Some common areas of specialization in public health include:

The focus provides students with specific training in the quantitative methods to use or adapt when designating or analyzing studies in a wide spectrum of health care. Apart from working in public health organizations, biostatisticians can work for government agencies. Pharmaceutical and medical device organizations.

Epidemiology is the study on the effects of health on larger populations and ways of reducing problems that come with a public crisis. These are the health professionals who educate the people and communities on how to achieve safe practice for good health. An epidemiologist can work for local or state government health department in a hospital setting, at a college or university.

These are methods relating to the identification and creating solutions for modern issues in public health. The concentration is on the theory of social influences and behavioral interventions on health and illness by applying design, intervention, and implementation.

It is a specialization focusing organization, planning, management and analysis of the health programs. Health science administrators specialize in health economics, systems, finance and quantitative methods. Their training is for careers in health management, policy development and health policy analysis.

Concentrations prepare students to work in those organizations dealing with public exposure to physical agents and chemicals. Successful graduates can work in academia, chemical or pharmaceutical industries and environmental protection agencies running from local, federal or state offices. Environmental health science has a broad concentration thus students should choose shift to specific topics such as molecular toxicology, environmental health policy, molecular epidemiology and global health.

Trains students to develop, execute and evaluate disaster by preparing, detecting hazards, responding, containment as well as recovery after disasters. There are many natural disasters as well catastrophes that put communities at risk hence a great demand for professionals who have skills to manage and minimize the effects.

There are many other sociality arrears in public health including:

Restaurant inspection
First responding
Health education
Community planning
Social work
Public policy maker
Public health physicians
Public health has many opportunities to diversify, specialize, career growth and to improve communities.