The diagnosis of substance dependence is closest to what people often refer to as drug addiction. When a person shows either tolerance or withdrawal from the substance, the person shows physiological dependence on the substance. Tolerance is present when a person experiences less and less effect from the same dose of substance and needs greater and greater doses of a substance in order to achieve intoxication. On regards to people who smoke, 20 cigarette sticks would make a person who just recently smokes to get violently ill while people who have smoked cigarettes for years would have no problem with that amount of sticks. A person who is highly tolerant to a substance may have a very high blood level of the substance without being aware of any effects of the substance. For example, people who are highly tolerant to alcohol may have blood-alcohol levels far more than those used in the legal definition of intoxication but show little signs of alcohol intoxication. From one substance to the next, the risk of tolerance varies. Cannabis and PCP shows lower risks for tolerance while alcohol, opioids, stimulants, and nicotine have high risks for tolerance.
People who are physiologically dependent on substances often show severe withdrawal symptoms when they stop using the substances. The symptoms may be so severe that the substances must be withdrawn gradually in order to prevent the symptoms from becoming overwhelming or dangerous. These people may take the substances to relieve or avoid withdrawal symptoms. For example, a person dependent on alcohol may have a drink first thing in the morning to alleviate the withdrawal symptoms.
Physiological dependence (i.e., evidence of tolerance or withdrawal) is not required for a diagnosis of substance dependence, however. The diagnosis can be given when a person compulsively uses a substance, despite experiencing significant social, occupational, psychological, or medical problems as a result of the use.
Most people who are dependent on a substance crave the substance and will do almost anything to get the substance (e.g., steal, lie, prostitute themselves) when the craving is strong. Obtaining and ingesting the substance may be the center of the lives of these people. They may have attempted repeatedly to cut back on or quit using the substance, only to find themselves compulsively taking the substance again.
The bad image and the negative consequences has always been synonymous to substance dependence or drug addiction. The best move is to always stay away from it. However, if you happen to know someone who has failed to stay away from it, there is still a way to help that person lessen the bad effects of drug addiction. This is done through going in a drug rehab. How does drug rehab help in this kind of situation? Drug rehab offers different procedures that have a very high assurance to help one get out from the hells of drug addiction. What are you waiting for? Contact your local hospital and see what drug rehab procedures they can offer.
Substance dependence gives many negative consequences to the society and the effective way to solve these negative consequences is by going through a drug rehab.