'Moderate' drinking linked to brain damage: study

Even moderate drinking is linked to brain damage and a slight decline in mental skills, according to a study released Wednesday that calls into question many national alcohol guidelines.Men and women who consume 14-to-21 drinks a week over decades are two to three times more likely than non-drinkers to show atrophy in the hippocampus, a part of the brain that governs memory and the ability to keep one's bearings, said the study, published in the medical journal BMJ.A single drink was defined as