Results: It supports the hypothesis of unhealthy behaviour as a result of safety and risk factors through the mediating effect of the experience of tension (Chi-square=4.507, df=2, p=.212). This model not only corroborates the stressful nature of exposure to risk and the absence of supervisors' safety response, but it also makes it possible to consider injuries as a cause of tension that, in turn, affects the employees' unhealthy behaviour. that included questions on the effort and reward at work, overcommitment, physical health, and a range of other social, demographic and behavioral indicators. All individuals were then followed for mortality through population mortality registers.