Heroin is known to be the most abused illegal fast acting narcotic. It is highly addictive and leads though who use it down a very dark and treacherous road. Heroin addiction tends to take place rapidly through every method of ingestion. Those who trick themselves into believing that their use of heroin is only "recreational" will fall into heroin's web of addiction. Individuals will find that they crave the drug and begin to experience symptoms of heroin withdrawal if they are unable to obtain the drug.

Heroin addicts begin to lose interest in their daily activities and find that their time is filled with using heroin or focused on obtaining more heroin. As their use progresses addicts find that their tolerance continues to increase, causing them to ingest more and more heroin to achieve the rush or high that they are looking for. As with other drugs of addiction, heroin addicts have trouble keeping their jobs and maintaining personal relationships. As their use becomes their first priority in their lives their bank accounts tend to be diminishing. It is not unusual for a heroin addict to spend upwards of $100-$200 dollars a day to feed their addiction.

While heroin produces intense feelings of pleasure while the user is "on" it the lows that follow will leave them depressed and irritable. Their body's normal production of chemicals to the brain, which typically produce feelings of pleasure are surpassed, this is what leads to their feelings of depression. The brain demands more and more heroin to achieve a feeling of normality again. A cycle of highs and lows begins leading to the loss of control over their heroin use - resulting in addiction.