July 18, 2014: Many Sexually Active U.S. Teens Not Tested for HIV: CDC
Only 22 percent of those at risk get screened, and researchers think complacency may be why

June 30, 2014: 'Sexting' Linked to Sex in Middle School
40 percent who'd sent explicit messages or photos said they'd been sexually active, study finds

June 19, 2014: Teen 'Sexting' Has a Double Standard, Study Shows
Girls are judged if they do, judged if they don't in small survey

February 26, 2014: Teens Who Indoor Tan Often Take Other Health Risks: Survey
CDC study tied practice to binge drinking, drug use and extreme weight control measures

February 03, 2014: HPV Shot Doesn't Encourage Sexual Activity in Young Girls: Study
Finding should reassure parents about the cervical cancer vaccine, doctors say

January 06, 2014: 20 Percent of Seventh Graders Have 'Sexted'
And they were more likely to have engaged in some type of sexual behavior, study says

December 31, 2013: Many Teens Don't Discuss Their Sex Life at Annual Checkup
Doctors are missing opportunities to educate teens about healthy sexual behaviors, researchers say

October 07, 2013: 1 in 10 Young Adults Admits to Sexual Violence
Violent pornography may be partially to blame, researcher says

August 11, 2013: Early Sex, Drugs More Common Among Teens With Half-Siblings, Study Suggests
Having children with multiple partners is increasingly common, researchers noted

May 10, 2013: When Teen Dating Turns Abusive and Violent
Parents urged to watch for signs of behavior that affects 1 in 10 children

April 25, 2013: Porn Use Has Small Effect on Sexual Behavior, Study Finds
Many other factors contribute to young people having risky sex, experts say

April 01, 2013: Consensual Sex Typically Doesn't Begin Before Teen Years, Study Finds
Surveys find sexual intercourse, pregnancy more common at 14 and older

March 25, 2013: Teen Moms More Likely to Have Been Neglected, Abused
Study found childbirth rate 5 times higher than national average

February 14, 2013: Millions of Americans Have an STD: Report
And half of new infections each year are among young people, CDC says

November 09, 2012: Another Study Links 'Sexting' to Sexual Activity in Teens
But Dutch researchers find those at risk are in the minority

October 30, 2012: Smartphones Linked to Sexual Activity in Teens: Study
But whether one leads to the other isn't clear

October 18, 2012: Dad's Advice Could Be Key to Teens' Sexual Activity
More communication may translate to less sex, review suggests

October 15, 2012: HPV Shot Doesn't Encourage Sexual Activity in Girls: Study
No increase seen in STDs, pregnancy or birth control counseling

September 17, 2012: 'Sexting' May Go Hand-in-Hand With Unprotected Sex Among Teens
Study found association with other forms of sexual risk-taking among high school students

August 17, 2012: College Students Don't Respect Peers Who 'Hook Up' Too Much: Survey
Male athletes, fraternity members likelier to judge women more harshly

July 30, 2012: Booze, Energy Drinks, Casual Sex Combo Common in College: Study
Researcher suspects caffeinated cocktails play a role in campus 'hook-up culture'

July 24, 2012: Survey Finds Big Drop in Sexual Activity Among Black Teens
But overall, U.S. teens of all racial, ethnic groups as sexually active as a decade ago

July 19, 2012: Kids' Sexual Behavior Influenced by Movie Scenes: Study
Watching films with sexual content at 12 to 14 linked to risky 'sensation-seeking' personality

July 12, 2012: Disabled Kids 4 Times More Likely to Suffer Violence: Study
Children with mental, intellectual disabilities at greatest risk for sexual abuse, analysis shows

June 15, 2012: 'Sexting' Common Among Teens: Survey
Many are not aware of the legal, social consequences, researchers found

May 03, 2012: More Teen Girls Using Contraceptives: CDC
Increased use may have contributed to drop in teen births, researcher says

April 10, 2012: Sexual Abuse May Put Boys at Risk for Unsafe Sex
Multiple partners, teen pregnancies more likely among those who were victimized, surveys show

March 26, 2012: 1 in 5 Pharmacies Hinders Teens' Access to 'Morning-After' Pill: Study
Whether they deliberately mislead callers or simply don't know the law is unclear

March 13, 2012: Not Enough Young Women Getting Tested for Chlamydia: CDC
Research also found retesting rates, although critical, are also too low

March 09, 2012: Keeping Young Athletes Safe From Sexual Abuse
Danger lies with familiar people, not strangers, experts say

March 02, 2012: College Women's Condom Use Falls in Freshman Year
Binge drinking, bad grades were among the factors that affected condom use

February 01, 2012: Pediatricians' Group Recommends HPV Vaccine for Boys
Immunization schedules for meningitis, flu also updated

January 19, 2012: More Than Half of Teens Who Gave Birth Weren't Using Contraception: CDC
A third of them thought they couldn't get pregnant at the time, researchers report

January 19, 2012: More Americans Practicing Safe Sex, CDC Reports
Finding could signal changes in behaviors linked to HIV, researchers say

January 05, 2012: Many Teen Girls Mistakenly Think HPV Vaccines Cut Risk for All STDs
Doctors should stress limits of protection to patients, researcher says

December 20, 2011: Youth Exposure to Unwanted Internet Sexual Encounters Drops
But study found slight increase in online harassment

November 02, 2011: Teen 'Sexting' Common and Linked to Psychological Woes
Survey of Boston-area students found more signs of depression in those involved

October 12, 2011: More Teen Males Using Condoms When They First Have Sex: Survey
And more females are turning to contraceptive patch, emergency contraception

September 27, 2011: Sleepy Teens Prone to Bad Behaviors, Study Finds
About 70% of U.S. high school students sleep less than 8 hours on school nights, research shows

August 23, 2011: Boys Mature Sexually Earlier Than Ever Before: Study
For males, 'being 18 today is like being 22 in 1800,' researcher says

August 01, 2011: Study Tracks Masturbation Trends Among U.S. Teens
Data from nationwide survey finds boys starting earlier, doing more often than girls

July 29, 2011: Sexual Assault Doesn't Cause Binge Drinking in Girls: Study
But such alcohol abuse may put them at risk for sexual victimization and post-traumatic stress

July 21, 2011: Survey Suggests 'Sexting' Rampant in College
More than half have gotten sexual images on their phones, researcher says

June 30, 2011: Internet Sex Offenders Reveal Some Patterns
Majority bring up sex in first chat with young computer users, study finds

June 17, 2011: Dad's Good Parenting May Help Daughters Avoid Risky Sex
Quality, not quantity, of time spent with father matters more for girls, study suggests

March 03, 2011: More Young People Delay Sex, Try Oral Sex First, CDC Says
U.S. report also finds same-sex encounters more common for women than men

February 02, 2011: Gardasil Vaccine Guards Against HPV in Boys
Study finds it gives males same level of protection as females

February 01, 2011: HIV Linked to Higher Pregnancy Rate in Young Women
Study also finds more complications among those with the infection

January 10, 2011: Parents Say They Want to Teach Sex Ed to Their Kids
But many feel peers, media have greater influence, survey finds

January 06, 2011: Earlier Diagnosis Might Cut Cost of Teen Pelvic Disease
Advanced cases require $8,000 hospitalization on average, study finds