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Nowadays, living in a world more focused on citizenship, specialists are concerned on the impact produced by cities in the health of our society. This impact, which can be either positive or negative, has been profoundly researched lastly. However, it is important to mention the existence of positive exposures to overcome negative impact. These positive exposures are named green and blue areas, and have the aim of helping society maintain a healthier lifestyle. Recently, more and more research is made concerning green and blue areas; focusing on their positive impact in mental, physical and social health. The aim of this article is to present a compilation of information on green and blue areas in latest investigations, explaining different methodologies used for research and showing the diverse impact these areas might produce in human health