What is the number one cause of drug abuse?

People usually develop drug addictions because they are unhappy, and are self-medicating to feel better. They might be clinically depressed, or something horribly traumatic may have happened to them, which they cannot get over.

Other people just have what is called "an addictive personality." There is evidence to suggest that this addictive personality may be hereditary. Studies have shown that 75% of alcoholics or drug addicts have at least one blood relative who is an alcoholic or drug addict.