The promotion of self-care, for the purposes of this work, refers to a co-management system of health services aimed at the prevention of illnesses and accidents in the workplace, educational or family. It is a process of establishing priorities in the personal agenda, although with a view to collective or environmental public health. This supposes differences between those who are influenced by prevention campaigns and those who assume criteria of choice oriented towards the construction of a favorable environment for their health and that of their peers.