The study…has important implications for the problem of relapse in alcoholism, which often occurs in times of stress, and can reduce working memory capacity even further. Average people generally make riskier and more impulsive decisions when their working memory is compromised as a result of stress, information overload, high or low emotional states, or other factors, Finn said.

http://news.indiana.edu/releases/iu/2014/10/nih-grant-alcoholism-study.shtml