In light of the transition from a rural to an urban society stated in 2008 , the city - now more than ever - has a decisive role to play in triggering and guiding the determinants that influence our health. Considering the transition to a society of longevity, cities can and must amplify the role of "champion of prevention" and be the partner and facilitator of citizens in the path to their healthy longevity. We have learned that it is meaningless to merely treat people for a health condition if we do not address the causes of that condition and actively try, not only to counteract them but also and above all, to prevent them. And the city is the avant-garde ecosystem to implement this action. More info at info@cityoflongevity.org