Did you know that about 80% of teens in the United States don't smoke? They've made a healthy choice.

As you grow, you need calcium to build strong bones and a healthy body. Getting plenty of calcium while you are young also makes your bones strong and keeps them strong for your entire lifetime.

Great physical health is characterized by strength, flexibility, comfort, energy, endurance, and coordination. Similarly, great mental health includes feeling cheerful, hopeful, confident, resilient, adaptable, and connected to the people and world around us. Developing and maintaining a healthy lifestyle

Attention-deficit/hyperactivity disorder (ADHD) is a condition of the brain that makes it difficult for people to concentrate or pay attention in certain areas where it is easy for others, like school or homework.

Most importantly, let your teen know that he or she can talk with you and his or her doctor about dating and relationships. Offer your guidance throughout this important stage in your teen's life.

Remember that your teen’s doctor can help assess whether your teen has a drug problem and a laboratory test is not always needed. However, if a drug test is recommended, your teen should know about it. The American Academy of Pediatrics opposes drug tests without a teen’s knowledge and consent.

Thousands of teens commit suicide each year in the United States. In fact, suicide is the third leading cause of death for 15- to 24-year-olds.

One-third of all new smokers will die from diseases linked to smoking. And nearly 90% of all smokers started when they were teens.

Children are exposed to sexual messages every day—on TV, on the Internet, in movies, in magazines, and in music. Sex in the media is so common that you might think that teens today already know all they need to about sex. They may even claim to know it all, so sex is something you just don't talk about.

Even though stress makes us feel uncomfortable, it's not always a bad thing. Sometimes stress can really help us deal with tough situations. A lot of stress changes our bodies quickly and helps us react to an emergency. A little stress keeps us alert and helps us work harder.

Teens get tattoos or body parts pierced for different reasons. Most teens get a tattoo or body piercing because they like the way it looks or to express themselves. Some get a tattoo or piercing to feel like part of a group. In some states and cities, you need to be 18 or have a parent's permission to

You play to win. You're always looking for a way to get an edge over your opponents.

Puberty is the time in your life when your body starts changing from that of a child to that of an adult. At times you may feel like your body is totally out of control! Your arms, legs, hands, and feet may grow faster than the rest of your body. You may feel a little clumsier than usual.

Motor vehicle crashes are the leading cause of death for 16- to 20-year-olds, accounting for about 5,500 fatalities annually and injuring thousands more. A variety of legislative measures—graduated driver licensing (GDL), minimum drinking-age and drunk-driving laws, and improved seat belt laws—are

Traffic crashes are the leading cause of death for teens and young adults. More than 5,500 young people die every year in car crashes and thousands more are injured. Parents can play an important role in reducing these numbers and keeping their teens alive.

Certain teens and young adults have a higher risk of getting meningococcal disease. College students, especially freshmen who live in dorms and military recruits, are at an increased risk compared with others in this age group. It's important to know how to protect yourself because meningococcal disease