A meeting of Alcoholics Anonymous in the 1950s was based on much the same 12-step program used today. Bettmann/Corbis hide caption

itoggle caption Bettmann/Corbis
Maria Fabrizio for NPR

Women who consume eight or more drinks per week are considered excessive drinkers, according to the CDC. Breast cancer, liver disease and heart disease have all been linked to excessive drinking over time. Ann Boyajian/Illustration Works/Corbis hide caption

itoggle caption Ann Boyajian/Illustration Works/Corbis

Eighty percent of college students drink, and schools have had little success reducing those numbers, or the problems caused by excessive alcohol. Toby Talbot/AP hide caption

itoggle caption Toby Talbot/AP