Many forms of community health intervention can reduce the amount of violence in communities. First, many forms of violence are cause or exacerbated by substance abuse, both illegal drugs and alcohol. Any programs that help addicts recover may reduce violence. Next, although most mentally ill people do not engage in violent behavior, some are dangers to themselves or others, and so increased availability of counseling services will reduce both violence and suicide. Finally, community healthcare can decrease child abuse. As abused children are at risk of growing up to be abusers, intervening can help future as well as current generations. Healthcare workers should search for injury patterns that might indicate abuse.