Edited sentence: , was part of a Harvard study that followed a group of men for four decades, beginning in adolescence.In his 1983 book The Natural History of Alcoholism, Dr.Psychiatrist George Vaillant, M.Studies of alcohol abusers in community settings show that they frequently outgrow their drinking problems on their own.Vaillant reported that over 60 percent of those who overcame their alcoholism didn't enter any kind of treatment, including AA