Within a context of a globalized society looking for a higher standard of quality of life, the aim of our work is to analyze, preferently from a psychosocial dimension, those damaging elements for work health in the work environments, both from an external perspective of work physical environment and from an internal and organizational one. This will let us to think on work risks, accidentability, as well as some precarious and harmful conditions in the workplace, such as psychological harassment. This work try to contribute to a model which warranties healthy work environments, showing some proposals of action, and emphasizing those comprised within the dynamic of psychological contract of the companies.