Abstract
The focus of this book resided in the study of interactions: youth - behavior - environment. The behavior of young people was narrowed to the research of the health risk behavior, here related to frequent smoking, excessive alcohol consumption and use of illicit substances.
This is to say of those substances which increase the probability of consequent unfavorable health outcomes and which contribute to the main causes of illness and death. Throughout our research, we have found that school environment has a strong influence on the occurrence of multiple health risk behavior.
The quality of environs we live in, and the quality of school environment which students occupy on a daily basis, relates strongly with the result if a teenager will incline to one of the possible risk behaviors or even to their combination.