Adolescence is a period of upheaval. It implies personal, social and intellectual changes, likely to generate anxiety attacks and questioning. This leads to a real psychological vulnerability that is very anxiety-provoking and that the teenager tries to compensate for by using excessive amounts of psychoactive substances. The relationship between adolescence and drug addiction raises questions. Everyone is concerned: parents, teachers, educators, caregivers. The most difficult thing is to encourage the teenage drug addict to seek care and to develop a relationship of trust. The support of parents is essential. Drug use most often begins before the age of 20, but can also occur earlier in pre-adolescence, as early as age 12, sometimes leading to legal consequences. This book is addressed to all those who are interested in the future of our youth. To help them, to orient them, to inform them about the risk of toxic substances to prevent the spiral of drug addiction and delinquency.