A new national study examined for the first time who influences the safety behavior of young workers aged 15 to 24. The researchers looked at six sources of influence; parents, siblings, teachers, friends, supervisors and co-workers to see how they related to the workers’ risk-taking behavior and frequency of minor work injuries. Their findings show that among the six sources of influence, parents, supervisors and co-workers had the largest positive influence. Young workers who are regularly exposed to supervisors’, co-workers’, and parents’ injunctive safety norms reported fewer work injuries via less frequent work-related risk-taking.