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... Health mainly involves prevention. In this course therefore, I have learnt how to prevent disease and promote good health within communities and countries. In this field, research is of core importance, as well as policy, as these help to understand and explore different health issues in different communities. Nonetheless, public health is advantageous to countries, as this has a positive influence on their economy. When the community is healthy, and has undertaken preventive measures to diseases, the country saves considerable amount of money, as only a few part of the population are likely to fall sick. Public health also alleviates human suffering, and is practiced by a variety of professionals...