Research most often deals with the relationship between risky behaviour on the road and other aspects of young adults’ lifestyle. It is rare that the sense of responsibility for one’s own life and health and for that of other people on the road is understood, due to the limitation of perceptual data. In this study, we researched 198 young adults (M = 19.75; SD = 1.11) using the Multidimensional Health Locus of Control, the Inventory of Health Behaviours, the Criteria of Health List and a student health survey. The chance of risky driving will increase by 50.7% among young adults as their understanding of health as a state increases. On the other hand, when young people feel that others are responsible for their lives, the likelihood of risky driving will drop by 6.4%. The hedonistic life orientation of a young adult had a significant impact on the results obtained which was connected with their understanding of health.