How do alcoholics affect families and friends? Alcoholism is a family disease. The disease affects all those who have a relationship with a problem drinker. Those of us closest to the alcoholic suffer the most, and those who care the most can easily get caught up in the behavior of another person. We react to the alcoholic's behavior. We focus on them, what they do, where they are, how much they drink. We try to control their drinking for them. We take on the blame, guilt, and shame that really belong to the drinker. We can become as addicted to the alcoholic, as the alcoholic is to alcohol. We, too, can become ill.