Marijuana, a Schedule I drug, is an addictive substance that comes from the cannabis plant. While some people use the drug recreationally, not all of them develop physical dependence. This is the main reason why several states in the United States have already approved its legalization for both medicinal and recreational purposes. However, this does not remove the risks that the drug brings especially to teenagers, and those with pre-existing mental health problems. The risk for addiction is even higher when the individual has a history of drug abuse or alcoholism. When Is It Time To Quit Using Marijuana When …