alcoholism sugar addiction

Is not that just an addiction alcoholism?
If they are not sugar-coating, if they call it a disease or a condition? How is it different from other addictions (heroin, nicotine, meth, whatever), except that it spreads / far is so popular? I am writing a research essay on the topic, so any credible source material would be fantastic.
Alcoholism is more than just an addiction, it has been qualified and listed as a mental illness in the DSM-III-R (Diagnostic and Statistical Manual of Mental Disorder). Alcoholism is not a moral disease with lack of will power, although the disease process is not involved in immoral, irrational, and even criminal behavior. It was often called the disease of "denial", as this coping mechanism is the over-riding and preferred coping mechanism to engage in the brain to solve all his problems. If you are off to solve the reason or rational thinking and misuses of coping mechanism that further discourages the rational, reasoning processes, we call you tend to the mentally unstable or disturbed. Alcohol has a deterrent, the agent's welfare and the stability the person who tries to solve problems effectively. Denial is just one of many mechanisms used to deal with us in order to cope with the world. It should not be large, over-riding process for all become on of base our decision-making. Alcoholism is a brain biochemical changes first, a tolerance the substance with a psychological component need. Then comes the bio-chemical brain modification, a physical necessity, produced the substance to a dependency Alcohol continues to physically cope with the world. The brain is "lazy", so to speak. It uses the fast metabolism of alcohol to do instead of the hard work of preparation of good brain chemical needed to make wise decisions. He now moves to the replacement, alcohol, to the hard work of production and distribution of the real brain chemistry. The brain Fool to think for themselves, that this economic brain chemistry. He asks: Why produce these chemicals, if I get it already made? Then all I have to do is quickly metabolize and distribute! The brain, in this changed condition, the metabilized alcohol to receptors, the coping mechanism of the mind now triggered slip prefers. The brain is now asking for this substance, when it must cope with feelings and situations. This is a very complicated and complex disease and my list is very, very simplified. There are also are different types of alcoholism. Not everyone has the option of either an alcoholic, even if they abused alcohol for years and years. Some people are born with the disease already in progress. Genetics can play a part of this disease. Hope this helps, I think, that the public are always kept in the dark about the disease process and how people who are in support of the downward spiral of alcoholism.