I think I know why many alcoholics relapse around day 40.

I believe that the last of the non-brain organs are finally close to healed- particularly a fatty liver, which supposedly reverts to normal after about six weeks of abstaining and healthy living. I know a bit too much- OK, my liver is better, my heart is better, so it’s as if I just reset my body back to healthy nondrinker status, other than my brain, eh? So I think about being a moderate drinker, and the non-healed brain generates the bad behaviors all over again.