Results from the 2011 national YRBS indicated that many high school students are engaged in priority health-risk
behaviors associated with the leading causes of death among persons aged 10–24 years in the United States. During the 30 days
before the survey, 32.8% of high school students nationwide had texted or e-mailed while driving, 38.7% had drunk alcohol,
and 23.1% had used marijuana. During the 12 months before the survey, 32.8% of students had been in a physical fight, 20.1%
had ever been bullied on school property, and 7.8% had attempted suicide. Many high school students nationwide are engaged
in sexual risk behaviors associated with unintended pregnancies and STDs, including HIV infection. Nearly half (47.4%) of
students had ever had sexual intercourse, 33.7% had had sexual intercourse during the 3 months before the survey (i.e., currently
sexually active), and 15.3% had had sexual intercourse with four or more people during their life. Among currently sexually active
students, 60.2% had used a condom during their last sexual intercourse. Results from the 2011 national YRBS also indicate many
high school students are engaged in behaviors associated with the leading causes of death among adults aged ≥25 years in the
United States. During the 30 days before the survey, 18.1% of high school students had smoked cigarettes and 7.7% had used
smokeless tobacco. During the 7 days before the survey, 4.8% of high school students had not eaten fruit or drunk 100% fruit
juices and 5.7% had not eaten vegetables. Nearly one-third (31.1%) had played video or computer games for 3 or more hours
on an average school day.