- 
                    
			
					Young girls (ages 14-17) living in inner cities can become infected 
			with an STD within two years after their first sexual encounter. 
					
 Sexually Transmitted Infection 
			(STI) 
					screening should start within a year after first intercourse 
					in urban adolescent women since a large number of these 
					women get their first STI within that first year or two. 
					(2009)
 
- 
                    
			
			Couples Cohabiting Before Engagement and Marriage 
			Demonstrate Lower Marital Satisfaction and Greater Potential for 
			Divorce.                                                       
			
			Deciding to marry only after having lived 
			together is a risk factor for having more problems in marriage.
			
					
					  (2009)                                                                                                          
					 
- 
                    
					Underage 
                    Drinking Associated with Promiscuity; 40% of Underage 
                    Drinkers Receive Free Alcohol From an Adult   
                    
 Many Underage Drinkers 
                    Get Their Alcohol From an Adult, and Consume 2-5 drinks at 
                    an Average Occasion (2008)
 
 
- 
                    Sexually 
                    Active Teens More Likely to Engage in More Risky Acts
 Teens Who Are Sexually Active Are More 
                    Likely to Engage in Other Risky Sexual
 Behaviors 
                    (2008)
 
 
- 
                    
	      Teens' Brain Growth 
			and Behavior Linked
 Some Teens Emotions are 
			Developing Faster Than the Parts of Their Brains that Manage Those 
			Emotions. 
			(2008)
 
- 
                    
	      The Shift from Dating to Hooking up in College: What 
						Scholars Have Missed 
			
			
			
			Traditional dating by college students 
						has been replaced by “hooking up”. 
			
			 
                    (2007) 
- 
						
						Teens who Have Sex at an Early Age Increase Their Risk of 
                    Delinquency
 Sexual intercourse at an 
                    early age may hinder social development and contribute to an 
                    individual’s participation in delinquent behaviors one year 
                    later. 
                    (2007)
 
- 
						
						Risky Lifestyle 
                    Behaviors in Youth Extend into Adulthood
 Risky lifestyle behaviors, which 
                    contribute to the leading causes of morbidity and mortality 
                    among youth and adults, often are established during 
                    childhood and adolescence, extend into adulthood, are 
                    interrelated, and are preventable. (2006)
 
 
- 
						
						The Dangers of 
                    Spring Break Behaviors for Young Women 
						
 Spring break trips frequently involve 
                    heavier drinking than on college campuses as well as an 
                    increase in risky sexual activity. (2006)
 
 
- 
						
						The U.S. Has One of the 
                    Highest Teen Pregnancy Rates in the Developed World
 By their 18th birthday, six in 10 
                    teenage girls and more than five in 10 teenage boys have had 
                    sexual intercourse (2006)
 
 
- 
						Number of Students Having 
			Sex Dropping & Adolescent Birth Rate at Record Low 
						
 There has been a reported decrease in the 
			proportion of students having sexual
 intercourse. (2007)
 
 
- 
						
						Almost Half of All 15-19 
                    Year Olds in the U.S. Have Had Sex At Least Once 
 By the time teens reach 19 years old, 
                    seven in 10 teens have engaged in sexual
 intercourse. 
                    (2006)
 
 
- 
						
						
						
						Females with History of 
                    Casual Sex Report Most Depression
						
						 
 For females, as the number of sexual 
                    partners increase, depressive symptoms increase as well.
						
						
						
						
						(2006)
 
 
- 
						
						
						Alcohol is a Common Precursor to Teen Girls’ 
                    Participation in Sex Parties
 Girls report that alcohol use and 
                    hook-ups are common at sex parties. Parties allow for sexual 
                    experimentation without the social expectations of dating 
                    relationships. 
					(2006)
 
 
- 
						Exposure to Smoking in Movies Predicts Risk of 
	Becoming an Established Smoker 
						
						
						
						 Exposure to smoking in movies by adolescents predicts 
			a risk of becoming an established smoker, an outcome linked with 
			adult dependent smoking and its associated morbidity and mortality.
						
						(2007)
 
 
- 
						
						Teen Girls Who Lose 
                    Their Virginity By age 17 Are More Likely to Have an 
                    Abortion later in Life. 
 The age of the girl when she first has 
                    sex is  associated with the likelihood of her choosing 
                    abortion. (2006)
 
 
- 
						
						
						Teens Desire for Sex Driven by Expectation of 
					Intimacy  
						                             
						
						Many teenagers think that sex will satisfy their goals of 
					intimacy, sexual pleasure, and social status. 
						
						
						  (2006)                                                                                                                        
						 
- 
						
						Teens Who Lose Their 
                    Virginity By 15 Are More Likely To Regret it.
 Young 
                    adults who lose their virginity before they are 15 are more 
                    likely to regret it.
						(2006)
 
 
- 
						
						
						Cigarette Smoking Linked to Risky Sexual Behavior Among 
                    Teens   
 Cigarette 
                    smoking and risky sexual behaviors often occur together in 
                    teens and can be a reflection of addictive lifestyles and 
                    role modeling. 
						
						(2005)
 
 
- 
						
						Drug and Alcohol 
                    Consumption 
                    Associated with Risky Sexual Behaviors 
 Various studies have found that 
                    substance-using teens are a high-risk group for risky sexual 
                    practices and might be a target for programs and policies 
                    designed to reduce sexual risk-taking behaviors. 
						
						(2005)
 
 
- 
						
						Risky Lifestyle 
                    Behaviors in Youths Linked to Depression and Suicide 
 Youths who engage in more 
                    risky patterns of sex and drug behaviors are at a higher 
                    risk for depression and suicide. Although risk behavior is 
                    associated with elevated depression symptoms for both 
                    genders, the likelihood of depression is higher for girls. (2005)
 
 
- 
						
						STDs Transmitted 
                    Through Oral Sex
 A large number of teens and 
                    some adults may be engaging in oral sex to prevent pregnancy 
                    and sexually transmitted diseases. However, a report from 
                    the National Center for Health Statistics (a division of the 
                    CDC) cited evidence that HIV, gonorrhea, chlamydia, 
                    chancroid, and syphilis can all be transmitted through oral 
                    sex. (September 16, 2005)
 
 
- 
						Teens and Risky Sexual Behavior
 While going through a process of emotional growth in adolescence, 
			teens frequently get involved in risky sexual behaviors that expose 
			them to unintended pregnancy and sexually transmitted infections. 
			Researchers have found that abstinence-only sex education 
			intervention programs are effective in the prevention of unintended 
			adolescent
 pregnancies. (2005)
 
 
- 
						Teens' Brain Not Fully Developed
 What was once blamed on as being “raging hormones” in teens is now 
			being seen as the by-product of two factors: an excess amount of 
			hormones and a lack of the cognitive controls needed for mature 
			behavior. According to recent research findings, the brain isn’t 
			fully mature until a person reaches about 25 years of age. (May 
			2, 2004)
 
 
- 
						Abstinence Responsible for 
			53% of Decrease in Teen Pregnancy Rates During the 1990's 
						
 Study observes that the decrease in teen 
			pregnancies and birthrates in the 1990's can be attributed to both a 
			decrease in sexual experience (abstinence) and an increase in the 
			use of contraception. (2004)
 
 
- 
						
						Teens 
					Substituting Oral Sex for Intercourse                                                  About 12 percent of males and 10 
					percent of females (aged 15-19) have participated in oral 
					sex with a member of the opposite sex. A substantial 
					proportion of teens abstaining from intercourse are placing 
					themselves at risk for STDs by engaging in oral sex.     
					(2004)                       
						 
- 
						
						Early Initiation of 
                    Sex Among Girls Increases Negative Life Outcomes
 Girls who begin sexual 
                    activity at earlier ages and have high numbers of 
                    non-marital sex partners are far more likely to have a wide 
                    variety of negative life outcomes including: increased rates 
                    of infection with sexually transmitted diseases, 
                    out-of-wedlock pregnancy and birth, increased single 
                    parenthood, decreased marital stability, increased material 
                    and child poverty, increased abortion, increased depression 
                    and decreased happiness. (June 23, 
                    2003)
 
 
- 
						
						Chaste Teens Significantly 
                    Less Likely to be Depressed 
						
 When compared to teens who 
                    are not sexually active, teenage boys and girls who are 
                    sexually active are significantly less likely to be happy 
                    and more likely to feel depressed. Also, when compared to 
                    teens who are not sexually active, teenage boys and girls 
                    who are sexually active are significantly more likely to 
                    attempt suicide. (June 2, 2003)
 
 
- 
						
						Drug Use During 
                    Adolescence Associated with Addictive Behavior Later in Life
                    	
						
 During the neurodevelopmental 
                    changes that occur in the brains of adolescents, sometime in 
                    the period where they have poor impulse control and 
                    increased risk taking behavior, the introduction of 
                    addictive drugs may contribute to further addictive behavior 
                    in later years.  
                    	
						 2003)
 
 
- 
						Abstinence Accounts for 67% 
			Decrease in Teen Pregnancies During the 1990's 
 Various studies over the years have used 
			different research methods to identify the cause of the decline in 
			teen pregnancy rates. When properly implemented, abstinence 
			education is the best method for reducing teen pregnancy. 
			(2003)
 
- 
						
						
						Social Exclusion Causes Distress in Brain
						
 Studies have shown that social 
					exclusion of any kind causes distress in the brain and 
					registers in the same part of the brain that also responds 
					to physical pain. This suggests that the need to be accepted 
					as part of a social group is as important as avoiding other 
					types of pain. (2003)
 
- 
						Study Finds Sexting Youth More Likely to 
						Engage in Other Sexual Behaviors
 Twenty-two Percent of At-Risk 
						Youth Reported Sexting In the last 6 Months
						(2014)