A provocative new study finds that teens who text a lot are more likely to have had sex or used alcohol and drugs than kids who don't send as many messages.
The study's lead author says it's startling to see an apparent link between excessive messaging and that kind of risky behavior.
The study focused on high school students who send and receive texts at least 120 times a day or who spend at least three hours a day on Facebook or other social networking Web sites.
The research was done at 20 public high schools in the Cleveland area. It's being presented at a public health conference Tuesday in Denver.
Copyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.