That's what I got out of the frightening story in Tuesday's New York Times story The Grim Neurology of Teenage Drinking. Apparently adolescent rats are more severely affected by serious alcohol consumption than are adults; this seems to be true for adolescent humans as well (tho’ much harder to test). What is most affected is the hippocampus, which affects learning (rat testing) and memory. Scientists discovered that teens experience many more blackouts than previously known.
I read the story on Tuesday and listened to a podcast interview between Science editor David Corcoran and the reporter, Katy Butler, on the Science Times podcast today.