It’s scary, dangerous, and hard to talk about: one out of four sexually active teens contracts a sexually transmitted disease (STD) –  3 million new cases a year. STDs, including Chlamydia, herpes and HIV, are a silent epidemic that is getting worse. Are teens making risky choices out of ignorance or are they hampered by a sense of invincibility, forgetting common sense and good judgment? Real stories and surprising research into teen sexuality will get kids thinking about what they should do to prevent life-altering diseases.