 Hello, together with Joan Benak we would like to invite you to this course to understand how social inequalities impact our population health. For instance, why do women, as well as social disadvantaged classes, have poorer health than other social groups? So we are proposing a five-day course including debates, readings and lectures to talk about a comprehensive approach that enable us to understand why some populations have better health than others. We are sure you will enjoy this proposal so the invitation is open to develop a critical thinking in this course.