The study's authors aren't suggesting that "hyper-texting" leads to sex, drinking or drugs, but say it's startling to see an apparent link between excessive messaging and that kind of risky behavior.

The study concludes that a significant number of teens are very susceptible to peer pressure and also have permissive or absent parents, said Dr. Scott Frank, the study's lead author.

Interesting correlational study. I'd like to see the actual study. I'm wondering how to re-work it to control for parenting.