The Youth Risk Behavior Survey (YRBS) is a national survey, conducted by the Centers for Disease Control and Prevention (CDC) every two years among representative samples of 9th through 12th grade students. The survey monitors six types of health-risk behaviors that contribute to the leading causes of death and disability among youth and adults, including:

Behaviors that contribute to unintentional injuries and violence
Sexual behaviors related to unintended pregnancy and sexually transmitted diseases, including HIV infection
Alcohol and other drug use
Tobacco use
Unhealthy dietary behaviors
Inadequate physical activity

In New Hampshire, YRBS is jointly administered by the Departments of Health & Human Services and Education. High schools are given the opportunity to participate in either the random state survey, a comprehensive school level census survey, or both.