The science of teen sex

Adolescent sexuality is a stage of human development in which adolescents experience and explore sexual feelings. Interest in sexuality intensifies during the onset of puberty , and sexuality is often a vital aspect of teenagers' lives. Sexual interest among adolescents, as among adults, can vary greatly, and is influenced by cultural norms and mores , sex education , as well as comprehensive sexuality education provided, sexual orientation , and social controls such as age of consent laws. Sexual activity in general is associated with various risks.
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BBC Science | Human Body and Mind | Teenage sex

Instead, the first thing I do is establish ground rules. Only then can we get to work. In the back corner of my classroom is an old shoebox with a hole cut into the top of it. Next to the box are scraps of paper and some pencils. This is the Question Box, a place where kids can drop any question they have about human sexuality. I answer the questions both during class time and on a blog I maintain at school. They run the gamut from innocent to downright technical.
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The theme for this very special gathering is "Make Way For Wonder. In this video, Emily F. Rothman, ScD , a public health researcher at Boston University who studies sexually explicit media, reveals correlations between pornography, lack of comprehensive sex education, and sexual violence. Following is a transcript of her remarks.
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The percentage of teens who report solely positive benefits from not having sex declines precipitously with age, according to a new study by scientists at the University of California, San Francisco. The finding suggests that adults should give teens guidance in coping with both the negative outcomes of engaging in sexual behaviors, and the negative experiences of refraining from them, the researchers say. Among teens who remained sexually inexperienced during the study, the percentage reporting only positive experiences from refraining from sex fell from 46 percent to 24 percent. Among teens who were sexually experienced at the outset of the study, the percentage reporting only positive experiences from refraining fell from 37 percent to 8 percent.
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