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  • Strength Training for Teens


    Is working out with weights safe for teens? The best way to build muscle tone and definition is to combine aerobic and flexibility exercises with the right kind of strength training.

  • Hernias for Teens


    A hernia is an opening or weakness in the wall of a muscle, tissue, or membrane that normally holds an organ in place. Learning to prevent hernias isn't hard to do - check out these tips.

  • Boys and Puberty for Kids


    On the way to becoming a man, a boy's body will go through a lot of changes, including your body growing bigger, your voice changing, and hair sprouting everywhere. Find out more.

  • Kids and Exercise for Parents


    Besides enjoying the health benefits of regular exercise, kids who are physically fit are better able to handle physical and emotional challenges.

  • Movement, Coordination, and Your 1- to 3-Month-Old for Parents


    The reflexes they had just after birth start to disappear as babies this age gain more control over movements and interact more with their environment.

  • Your Muscles for Kids


    You have more than 600 muscles in your body! They do everything from pumping blood throughout your body to helping you lifting your heavy backpack. Find out more.

  • Strength Training for Parents


    With a properly designed and supervised program, strength training can be a fun way for kids to build healthy muscles, joints, and bones.

  • Weight Management: Strength Training Exercises (Video) for Teens


    These videos guide teens through basic strength training exercises. Anyone can do these exercises, and they work well as part of a weight-loss plan.

  • What Can I Do to Relieve My Pregnancy Backaches? for Parents


    Find out what the experts have to say.

  • Costochondritis for Parents


    Costochondritis is a painful inflammation (swelling) of the cartilage that attaches the ribs to the breastbone (sternum). It's one of the most common causes of chest pain in kids and teens, with girls having it more often than boys.