Young Americans are fascinated by "hooking up" and think it's OK to call girls "ho" — but they also wish they knew a lot more about true love and healthy relationships, the team at the Harvard Graduate School of Education found. A couple kisses while riding the subway in New York. (C) Lucas Jackson / Reuters / REUTERS What teens and young adults don’t know about love and sex can put them at risk, and their lack of knowledge is feeding a pervasive culture of misogyny in which 87 percent of teenage girls have been harassed, abused or assaulted, they found. "Unfortunately, we also found that most adults appear to be doing very little to address these serious problems,” said Richard Weissbourd, who led the study team and who directs Harvard’s Making Caring Common project. The Centers for Disease Control and Prevention reported last year that 41 percent of high school kids said they had ever had sex, down from around 47 percent over much of the last decade. Other studies show that casual sex is not common among U.S. youth. “Yet according to our research, teens and adults tend to greatly overestimate the percentage of young people who are hooking up or having casual sex,” the Harvard report said. That’s in part because it’s fascinating. “On college campuses at night, even those students who don’t participate in the party culture, can see or hear—or hear about—parties where hooking up is common, and all the competition and drama around sexual relationships among teens and the young can become, of course, an endlessly fascinating topic of conversation: the hook-up culture is theater,” the report reads. “This overestimation can make many teens and young adults feel embarrassed or ashamed because they believe that they are not adhering to the norms of their peers. It can also pressure them to engage in sex when they are not interested or ready.” The team surveyed 3,000 people aged 18 to 25, and spoke to teachers, parents, coaches and counselors for the report. Although schools are doing more sex education, and the internet has made information widely available, young men and women still don’t know much about love and intimacy, they found. “It can also pressure them to