By: Dube, Shanta R., Anda, Robert F., Felitti, Vincent J., Edwards, Valerie J., and Janet B. Croft.

These researchers study data from a clinic in California and find that experiencing adverse childhood experiences such as parental separation or divorce increases the risk of heavy drinking, self-reported alcoholism, and marrying an alcoholic increased 2 to 4 times, regardless of parental alcoholism.

Adverse childhood experiences and personal alcohol abuse as an adult. Addictive Behaviors 27 (5): 713-25.