One of the most important facts about heroin is that using this drug inevitably leads to drug addiction. Heroin addiction is characterized by compulsive drug seeking and use, and by neurochemical and molecular changes in the user’s brain. Heroin also produces profound degrees of tolerance and physical dependence, which are also powerful motivating factors for compulsive use and abuse.

Short-term effects of marijuana use include memory loss, distorted perception, trouble with thinking and problem solving, and anxiety. Students who use marijuana may find it hard to learn, thus jeopardizing their ability to achieve their full potential.

Nearly 15% of all drug related emergency room visits come as a result of heroin use.

For those in the upper ranks of heroin trafficking, business can be enormously lucrative. For decades the Mafia has been involved in heroin trafficking operations, including the “French Connection” of the 1950s and 1960s and the more recent “Pizza Connection,” which used pizza parlors as fronts. Other trafficking groups are more loosely based on ethnic or national ties; for example, groups of Chinese, Thai, Nigerian, or Mexican nationals have operated in different parts of the country.