College-age young adults are most likely to abuse alcohol
Two in five young adults between 18 and 25 binge drink, and one in seven reports heavy alcohol use. Men are about three times as likely as women to engage in heavy alcohol use and twice as likely to binge drink.
Heavy and binge drinking among adults in 2009

Source: Substance Abuse and Mental Health Services Administration, National Survey on Drug Use and Health, 2010.