October is Month, part of a national campaign to encourage families to talk with teens about sex and relationships. In March 2013, I shared tips on how parents can talk with their teens about sex. Today, I’m going to pass on some reasons why talking with middle schoolers about sex is important and how this may support younger teens’ health.

Here’s what’s important to know:

Almost one-third of teens have sex by 9th grade. A recent nationwide study by the Centers for Disease Control and Prevention found that 28% of girls and 32% of boys reported having had sex by the 9th grade.

Early sex puts teens at risk for poor school and health outcomes. Teens who have sex at an early age are more likely to drop out of school, get a sexually transmitted infection, or have an unintended pregnancy than teens who wait until they are older to have sex.

Talking with teens about sex can make a difference. Parents talking with teens about sex and relationships can make it more likely that teens will wait to have sex and, when they do have sex, that they will use protection.

It’s important to talk with teens before they have sex. Research tells us that it is critical for teens to learn about sexual issues from a trusted adult before they have sex.

Here's what we learned from our evaluation of ,* a comprehensive middle school sex education program:

Communication is key! Let’s Talk!

Jennifer Grossman, Ph.D. is a research scientist at the at . She co-directed an evaluation of a middle school sex education curriculum and leads a project investigating sex communication in the nuclear family and beyond and the implications for health interventions.

* Comprehensive Sex Education That Works is a middle school program, developed by the , that delivers accurate, age-appropriate information and emphasizes healthy relationship skills and family involvement.