Mark Feinburg, a professor at the Prevention Research Center for the Promotion of Human Development says, “Negative sibling relationships are strongly linked to aggressive, anti-social and delinquent behaviors, including substance use. On the other hand, positive adjustment, including improved peer and romantic relationship quality, academic adjustment and success, and positive well-being and mental health.”

Families who are committed and spend time together can prevent these negative effects. Parents who demonstrate love, forgiveness and grace teach children how to have healthy relationships.