"Scientists at Harvard and in Brazil have just published a study that shows using low voltage current delivered through a pair of saline-soaked sponges to specific sites on the head can cut down an alcoholics craving for alcohol."
"One potential advantage of developing tDCS as an alternative therapeutic strategy is the fact that the effects of tDCS are immediate."
"...a single treatment that can transiently block craving levels quickly would be highly desirable compared to drug treatment therapies that are typically more long-lasting and lead to tonic effects and thus can-not capture craving variations."
Side-effects were very mild.
Compared to what???