[nandm]

The studies that I have read indicate that yes, damage is done to the brain and when enough alcohol over a period of time is ingested it can cause long term and/or irreversable changes to the brain. Also consuming alcohol can cause dehydration which in turn reduces the amount of fluid that cushions and surrounds the brain making us more susceptible to head and brain injuries. I do need to place a disclaimer here as I do not have the links to the studies that I have read and am stating these things based on my memory and understanding of what I read.