Depression; Let s talk

April 7 is known as World Health Day andone of the main responsibilities of World HealthOrganization is to improve the knowledge of theworld population in order to prevent variousdiseases(1). This organization selects an illness or adisorder in terms of a unique slogan in order toplan for educational, prevention, curative and restrengtheningthe operation of countries aroundthat problem. The slogan of World HealthOrganization in 2017 is about depression under thetitle ‘Let’s Talk about Depression (2). Here somequestions come to mind:How much is the prevalence of depression andits burden that it is put in the first row of theworld’s disease Now that the countries will payattention to the topic of prevention and treatmentof depression, to what extent it is preventable andwhat shall be done to prevent it Finally, what ismeant by talking about depression In this study,we survey the status of depression and mentalillness in Iran and the world, effective ways forprevention and treatment of these disease andsolutions provided by World Health Organizationvia existing scientific resources.