Abstract Obesity is a complex chronic disease associated with numerous health and social consequences. In 90% of cases, obesity is multifactorial, with a basis in a discrepancy between energy intake and consumption, but also caused by endocrine, psychological factors, environment, improper diet, physical inactivity, and lifestyle. The environment where people live and work must provide opportunity for enough physical activity to prevent obesity. The availability of fitness parks, bike paths, and publicly accessible swimming pools are the many possibilities that a positive and encouraging environment could provide. Urban areas demand publicly accessible places for physical activity. At the same time, it is important to motivate citizens in urban areas to increase their physical activity, because of a predominantly sedentary lifestyle. If the city's urban and health policies promote a healthy lifestyle, for example encouraging cycling and walking by providing infrastructure that will allow for a greater percentage of people to engage daily in physical activity. A healthy-behaviors-promoting environment is important to combat obesity (walkable neighborhood, green space, safe cycling, healthy food availability). A variety of policy strategies are available to create an active and safe environment: 1) increasing green and blue areas in urban settings: to promote recreation and relaxation; 2) promoting cycling and walking as a form of active mobility; 3) reducing or banning of public advertising of unhealthy food, while promoting healthy nutrition and increase of markets with healthy food; 4) encouraging socialization through sport, etc. Providing a healthy and safe environment is necessary to curb the obesity epidemic. Numerous interventions aimed at implementing a plan to change the environment and create a safe and stimulating environment for children and adults are needed.