International research on children’s issues in one-parent, homosexual, adolescent motherhood and marital violence

An adequate and healthy exercise of the parental role may be impaired by several conditions related to the family unit and in particular to the parents, because they adversely affect the child’s psychophysical development, causing physical, psychological and social consequences. The following data confirming will be the most up-to-date, linked to the validity of literature of this introduction, referring to researches of some specific factors of risk, affecting parental behaviour and that, mostly lead to family mismatches.