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  • Bones, Muscles, and Joints for Teens


    Our bones, muscles, and joints form our musculoskeletal system and enable us to do everyday physical activities.

  • Yoga for Teens


    Looking for a workout program that's easy to learn, requires little or no equipment, and soothes your soul while toning your body? Read about yoga - and watch our slideshow for some easy poses to try.

  • Cocaine and Crack for Teens


    Cocaine is a powerful and highly addictive stimulant drug. Find out more about cocaine and its effects.

  • Blood for Teens


    Find out about the mysterious, life-sustaining fluid called blood.

  • Smokeless Tobacco for Teens


    Some types of smokeless tobacco contain more nicotine than cigarettes, so it can be even harder to quit using smokeless tobacco than to quit smoking.

  • Lyme Disease for Teens


    Lyme disease can be treated if it's caught early. Find out what causes it, how it's treated, and how to prevent it.

  • Caffeine for Teens


    Caffeine has probably helped you through long nights of studying or filling out college applications. But how much do you know about caffeine and its side effects?

  • Food Poisoning for Teens


    The germs that get into food and cause food poisoning are tiny, but can have a powerful effect on the body. Find out what to do if you get food poisoning - and how to prevent it.

  • LSD for Teens


    LSD is a chemical made from a type of fungus. Learn about its effects in this article for teens.

  • What Is Stress? for Teens


    Stress is a normal response to life’s changes, pressures, and challenges. It’s a mind-and-body signal that helps you get ready for what’s ahead. Find out more about how stress can help, and how it sometimes holds you back.