The term ‘public health’ refers to the science which aims to prevent diseases, prolong the life and promote the individuals' health through organised effort and informed choices taken by society, companies, communities and individuals.
The main role of public health is analysing the health of a population which can be an entire village or individuals who are living in several countries.
Public health considers both physical and mental well-being and is considered as an interdisciplinary subject. Indeed, the discipline is related to other fields such as environmental health, behavioural health, health economics, community health, public policy, occupational safety and mental health.
Modern public health is practised by a team of professionals, including epidemiologists, medical assistants, biostatisticians, public health nurses and midwives.
Preventive medicine relates to measures taken to prevent diseases. The discipline focuses on different types of mental and physical states which are affected by genetic predisposition, environmental factors, lifestyle choices and disease agents.
There are many methodologies which permit to prevent disease. It is important that adults do regular medical check-ups to identify risk factors for disease, discuss their lifestyle and maintaining a good relationship with a healthcare provider.
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