Alcohol is considered a recreation drink for many, but an addiction to other people. Alcohol is a drug and is very addictive. It contains ingredients such as ethanol which can trigger parts of the brain that makes it become addictive. Alcohol can be harmless if drunk in moderation. In fact, some scientists have proven that if a five ounce glass of red wine is consumed every day, then a person's heart will be healthier than a non-wine drinker's heart.