Former U.S. Surgeons General David Satcher and Joycelyn Elders on Thursday joined researchers and teachers in San Francisco to discuss abstinence-only sex education,weider x factor st results, the San Francisco Chronicle reports. According to the Chronicle, abstinence-only curricula teach students that premarital sex is "never appropriate" and that besides abstinence, there is no effective way to completely protect oneself against sexually transmitted infections and unplanned pregnancies. Comprehensive sex education, which "generally encourages" abstinence until marriage,trx rip training, incorporates discussions of safer-sex alternatives, such as using condoms, the Chronicle reports. Proponents of abstinence-only sex education say that the programs have decreased teen pregnancy and abortion...