Viera High School senior Alex Ollis, a top scholar, athlete and volunteer headed to the University of Florida.

According to a 2017 CDC report, 40 percent of U.S. high school students have had sexual intercourse at least once, 10 percent of students had four or more sexual partners, 30 percent had had sex ...

NPR's Up First is the news you need to start your day. The three biggest stories of the day, with reporting and analysis from NPR News — in 10 minutes. Available weekdays at 6:30 a.m. ET, with hosts ...