Every individual struggling with drug addiction has their own reason. There is no cookie cutter approach to this disease. However, the following are common reasons behind drug addiction.
A family history of drug addiction. This may also include alcoholism. In these cases, there are both genetic and mental/emotional elements to an individual's susceptibility towards alcoholism.
Some people use drugs for pain relief, and this causes dependency (or addiction.)
A highly common reason behind drug addiction is an inability to cope with stress. Examples include emotional stress, peer pressure, emotional distress, anxiety, depression, environmental stress and other reasons.
Similarly, some people become addictive due to underlying psychological disorders such as post traumatic stress disorder, or attention deficit disorder.
Curiosity "killed the cat." Children who are not well educated about drug use may become curious when confronted with the opportunity. Drug use leads to drug abuse, which leads to drug addiction.
While the reason behind drug abuse varies from one individual to the next, drug addiction almost always ends up the same way. To recover from drug addiction, one must face their personal reason.
If you have determined to give up this habit then you should not bother about any reasons which keep you from changing this habit. There plenty of thing you can do in order to make this habit at a bay. Give yourself a feeling of comfort and you will surely give up this habit very soon and if nothing workout for you then you can always choose a better drug rehab center for your treatment.