[Induced psychiatric and somatic disorders to cannabis]

Cannabis is the most consumed illicit drug. For a number of years it was thought to be not very toxic, although this idea has no scientific backup. The object of much controversy, it is a public health problem for the most vulnerable populations, adolescents, subjects with evolutive psychopathologies and certain highly cognitive situations: driving a car, the professional environment and students. Cannabis breeds, in international classifications of mental disorders, intoxication charts, abuse and dependence, although this last could have been challenged. The complications are basically anxious and psychotic. It is the object of a number of debates associated with schizophrenic disorders, where it seems to be a risk factor where there is a large consumption before the age of fourteen. Like all psychoactive substances, it is an aggravating factor in all evolutive psychopathologies.