We humans, living as individuals are always part of a community where ever we go. Living in a society, it is the moral obligation of all beings that we all be and do well not only in terms of work and behaviour but also in terms of our health and wellbeing as it might affect people around us, family and society alike. Some diseases might be communicable that spread through air, water other substances such as used clothes or utensils. Hence everyone’s healthy wellbeing is of utter significance for a nation’s build and progress. Public health is defined as "the science and art of preventing disease, prolonging life and promoting human health through organized efforts and informed choices of society, organizations, public and private, communities and individuals." Analysing the health and disease conditions of the population is the basis for public health.
- Environmental health
- Community health
- Behavioural health
- Health economics
- Public policy
- Mental health