Explores interventions in early childhood that can help prevent drug use and other unhealthy behaviors. The National Institute on Drug Abuse (NIDA), part of the National Institutes of Health, provides research-based principles that affect a child's self-control and overall mental health, starting during pregnancy through the eighth year of life. It recognizes that while substance use generally begins during the teen years, it has known biological, psychological, social, and environmental roots that begin even before birth.