I'm no expert, but I think there are studies that fall on both sides of the "coin". From my own experience in dealing with alcoholics, I believe genetics do play a role. My Sister, Dad, Grandpa are/were AH. My wife's Mother, Father, and brother AH. A sister-in-law, her Mom, and Grandma AH. This just seems to coincedental. Are they learned behaviors?? I think so, but there is also the people who grew up in this enviorment who can have a drink and stop. Just my two cents worth...