A recent survey of 43,000 adults in the United States showed that those who begin drinking alcohol in their early adolescent years are at greater risk of an alcohol-related problem later. Furthermore, those who abused alcohol during their adolescent years were not only at greater risk of alcohol dependence at some point during their life but were also at greater risk of, first, dependence more quickly and at a younger age and second, chronic, relapsing dependence. Among all respondents who developed alcoholism at some point, almost half-47%-met diagnostic criteria for alcoholism by the time they were 21 years old.