Abstract
CAT scan has been used for nearly seven years to demonstrate that amounts of alcohol varying from 20 gm/day up to the volumes consumed by alcoholics, may cause brain damage or be related to it. The effect of diet must be considered in all studies assessing the role of alcohol. It has been shown that abstinence results in improvement of the appearance and the density of the brain, as well as improvement in function. The possibility that alcohol may cause a metabolic block in the metabolism of thiamin has been established and is part of work‐in‐progress.