Abstract: The study has revealed estimation of health hazard of risky behavior among persons without risky behavior and individuals with different types of risky behaviors, such as drug and alcohol abuse and risky sexual behavior. Respondents extremely underestimate the danger of that kind of risky behaviors that is peculiar for them to the greatest extent. Drug users who deny danger of drug use are aggressive and unfriendly to other people. Alcohol users who underestimate health hazard of alcohol abuse feel sorry for their unrealized opportunities. Individuals prone to risk sexual behavior doubt their inherent worth have low self-acknowledgement and are less capable of long and productive work and volition action, they also feel sorry for their unrealized opportunities. However, among persons prone to risky behaviors there are those who realize health hazard of their behavior. So such drug users are characterized by strong feelings of guilt and existential fears: the fear of death and loneliness. Among individuals with risk sexual behavior with high grade of health hazard of their own behavior extraversion is more pronounced.