Social Determinants of Health are the circumstances in which people are born, grow, live, work and age, including the health system. These circumstances are the result of the distribution of money, power and resources at the global, national and local levels, which in turn depend on the policies adopted. They explain most of the health inequalities, that is, of the unjust and avoidable differences observed in and among countries with regard to the health situation. Through this strategy, medicusmundi promotes the need to investigate and intervene in the Social Determinants of Health.