The practice of social control in the field of the worker's health has been facing barriers imposed by the globalization and the restructuring in the work world, either because of the weakness of the workers' unions, or by the absence of representatives of the various workers categories without formal work bond, belonging to the expressive informal/precarious market. In the beginning of the 20th century, big National Conferences of Health were marked by political contexts with significant differences, favoring the lack of articulation among the representative bases that were engaged mainly in fragmented demands and particulars interests. To contemplate on as the legitimate representation of the workers' classes is configured, either belonging to the formal market, or informal/precarious, is necessary against the evidences that the current arrangement is impeding the deepening of the specific worker's health issues.
Social control; Worker's health; National Conferences of Health; Work world; Informal employment
