1. Depression: Depression can turn anyone towards drugs. Pills, marijuana and cocaine offer an escape from the sadness. If the addicted continues to use drugs, loses friends and family, he will inevitably have troubles with depression.
2. Family: Drug addicts often think and act differently when using drugs. They will often steal from their family, and be more inclined to abuse them physically and mentally. As families are destroyed by alcoholism, illicit drug use can destroy them too.
3. Careers: Often, before one even attempts to get a job there is a drug test. So, before the career even begins it is over. For those who already have careers, consider that drug use increases the chances of losing a job. All the work put in can be destroyed by an addiction to cocaine or marijuana. Losing a job because of drug addiction doesn’t look good when you want to get the next job; references will be meaningless if the former boss says you were fired, and then tells why the worker was fired.
4. Friends: Friends are often more willing to work with the drug addict because they see him as someone trying to find happiness. Where the family has to live with the addict, there is more distance for the friend. However, even friends will leave the addicted to his own choices, and decide to stop socializing with them. The addict, already losing his or her family, will have lost all social friends too.
5. Spiritual: Using drugs may seem spiritual at first. Addicts may see themselves as becoming closer with their beliefs. However, putting drugs ahead of family usually says the addict is willing to put drugs ahead of his or her God. Once it was thought spirituality could be found by inhaling or injecting something, but now few religions or cultures tolerate drug use in religious rituals.
Bonus. Physical Health: Inhaling drugs like marijuana clearly is dangerous. If done enough, it can have the same effects that smoking cigarettes can cause. Marijuana has five times as much tar as the same amount of tobacco. Injecting drugs with needles, however, can be fatal in a shorter time. Consider that every time the addict uses a needle by another addict, fatal diseases like AIDS can be spread. Every day, someone uses a dirty needle and later finds that he has contracted a serious illness. Addicts will also be less inclined to exercise or take care of themselves when all that matters is getting the next high.