I found this article during my morning read. I can’t say that I agree with everything 100% because of speculation on the part of the author or the “so-called” scientific expert.
Here’s a small blurb about alcoholism…
Even in alcoholics, alcohol use doesn’t actually result in the death of brain cells. It can, however, damage the ends of neurons, which are called dendrites. This results in problems conveying messages between the neurons. The cell itself isn’t damaged, but the way that it communicates with others is altered. According to researchers such as Roberta J. Pentney, professor of anatomy and cell biology at the University at Buffalo, this damage is mostly reversible.