Public Health (PH) can be defined as the multidisciplinary area of health promotion through local or global community initiatives. Its scientific bases are based on three areas of knowledge: basic sciences (pathology, toxicology, etc.), clinical sciences (internal medicine, pediatrics, pharmaceutical sciences, etc.) and specific sciences such as epidemiology, environmental health, health education , etc. One of the most important applications of PH is health policies, supporting decisions, analysing results, predicting future changes, etc.