Substance Abuse is an ongoing use of a substance which causes harm to the individual or others. Substance abuse is often known as drug or alcohol abuse. Substance abuse can involve the use of legal or illegal drugs. Substance abuse takes a huge toll on society impacting the economic, social, emotional and medical systems of our country. Information presented here is meant to be a general guide. Those individuals who are impacted directly or indirectly by substance abuse are strongly encouraged to talk to a professional.