By Elizabeth Cohen, CNN Senior Medical Correspondent
August 26, 2010 11:57 a.m. EDT
(CNN) -- "Do you know what this means: %*@:-( ?
Or this: ~~#ZZZZZZ ?
If the answers are no, you're not a teenager who uses alcohol or drugs."
This is an article that every parent should read and follow up on. And if you're thinking, "My kid isn't doing this kind of stuff," you need to read it twice.