Synthetic pot, or "fake weed," much riskier than marijuana, study finds

Marijuana is often seen as a relatively benign drug that produces a typically mellow high, but new U.S. government research shows that the drugs called synthetic pot appear to be much different.Teens who use synthetic pot are at a heightened risk for violent behavior, risky sex and abuse of other drugs, the U.S. Centers for Disease Control and Prevention study revealed.Synthetic pot -- sometimes called fake weed -- covers a variety of drugs sold under hundreds of brand names. Spice and K2 were c